样式: 排序: IF: - GO 导出 标记为已读
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Data assimilation for combustion ignition delay time simulation using schlieren image velocimetry Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-04-13 Aiko Yakeno, Rin Inamura, Naoki Watanabe, Ryoichi Yoshimura, Shigeru Obayashi, Naoki Kurimoto, Scott Skeen
This study sought to improve the accuracy of simulating spray penetration and combustion ignition delay by means of data assimilation (DA). The simulations were conducted using the Reynolds-averaged Navier–Stokes (RANS) equations and assimilating the schlieren image data. In DA, an ensemble square root filter (EnSRF) was used to build the statistical model, making the simulation results more accurate
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Submerged flow over various shapes of piano key weir Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-04-08 Reza Zarei, Masoud Ghodsian, Yousef Sangsefidi, Chonoor Abdi Chooplou
The weir, an essential element of dams utilized for floodwater management, plays a crucial role in human life. Over the years, nonlinear weirs have advanced into Piano Key Weirs (PKWs). These PKWs provide enhanced discharge efficiency, a reduced structural footprint, and heightened cost-effectiveness. PKWs possess a sophisticated structure defined by numerous geometric parameters. The impact of these
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Dynamic performance prediction and experimental analysis of wet clutch actuator considering thermal flow characteristics Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-31 Le Shan, Liejiang Wei, Yan Qiang, Yuanting Cui, Peng Zhan
The hydraulic actuator system (HAS) for wet clutches in heavy-duty vehicle transmissions is required to have a fast response and high precision in the pressure regulation procedure. Conventional pressure control valves for HAS are almost slide spool structures, which perform a large flow force at a high flow rate. An open-center spool structure is designed and developed in this paper, which is a combination
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Spatio-temporal void fraction visualization in air-water two-phase flow regime transitions by combination of convolutional neural network and long short-term memory implemented into multiple current-voltage (MCV-CNN_LSTM) Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-28 Daisuke Saito, Yosephus Ardean Kurnianto Prayitno, Prima Asmara Sejati, Shuichiro Miwa, Masahiro Takei
Spatio-temporal void fraction in air-water two-phase flow regime transitions has been visualized by combination of convolutional neural network and long short-term memory implemented into multiple -current-voltage (MCV-CNN_LSTM). The MCV-ML is composed of two components, which are MCV-CNN_LSTM training and evaluation. In the first component, four steps are carried out as 1) true void fraction measurement
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Measurement of two phase flow concentration with a novel pressure difference method. I: Principle Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-25 Yanqin Li, Shuaihao Peng, Zhijiang Song, Fei Wang
Traditionally, the measurement of the concentration of a two-phase flow by gauging differential pressure is subject to pressure loss due to the flow friction along the pipe wall. A novel pressure difference method against this issue was proposed in this paper. A theoretic model is developed for the method, from the principle of hydrostatics of particle gravitational settlement. The method was essentially
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Structural optimization design of ice abrasive water jet nozzle based on multi-objective algorithm Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-21 Ying Liu, Xiaoyang Chen, Jun Zhang, Lele Feng, Huiwen Liu, Chong Hao
To enhance the cleaning efficiency of the ice abrasive water jet (IAWJ), the nozzle in the jet structure was optimized. The cleaning effect of nozzle with different structural design is different. The design variables include the geometric parameters of the nozzle's structure and the flow process parameters of the jet. The maximum wall static pressure, outlet velocity and wash width are the optimization
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A novel CFD-ANN approach for plunger valve optimization: Cost-effective performance enhancement Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-20 Abdul Rahman Sabra Kaak, Kutay Çelebioğlu, Zafer Bozkuş, Oğuzhan Ulucak, Ece Aylı
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Study on the efficiency characteristics of a stacked cone two-dimensional piston pump Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-20 Wenang Jia, Hongchang Chen, Zeji Chen, Sheng Li
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Measurement method of gas holdup in horizontal gas-liquid two-phase flow based on fiber-optic probe array Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-18 Weihang Kong, Shaohua Li, Hu Hao, Peng Yan, Chao Zhuo, He Li
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Characterization of multiphase flow through venturi nozzle using gamma-ray tomography Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-17 S.H. Stavland, S.-A. Tjugum, A. Hallanger, C. Sætre, R. Maad, B.T. Hjertaker
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Flow pattern identification for internally threaded tubes based on pressure drop fluctuations Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-16 Cong Zhao, Hao Guo, Zhiqiang Yang, Hanwen Xue, Maoqiong Gong
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Two-dimensional small leak detection of pipeline based on time sequence coding Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-11 Jingyi Lu, Jing Chen, Dandi Yang, Zhongrui Hu, Peng Wang, Dongmei Wang
In this study, a two-dimensional pipeline small leak detection based on time series imaging is introduced. First, the sampling points and data of pipeline signals are converted into polar diameters and polar angles in polar coordinate system to form vectors, and then the inner product between vectors is mapped to 2-dimensional pixels through the use of Gram angular field (GAF). The resulting image
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An approach to hydraulic design of Conical Central Baffle Flumes Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-09 P Sujith Nair, Aniruddha D. Ghare, Ankur Kapoor
Design methodology for providing a Conical Central Baffle flume (CCBF) has not yet been found in the literature, though it is required by the hydraulic engineers considering the increased popularity of the baffled flumes, now-a-days. Some guidance for discharge prediction using CCBF is only found in the literature. The main objective of the present research is to address the issue of hydraulic design
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A highly stable, pressure-driven, flow control system based on Coriolis mass flow sensors for organs-on-chips Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-08 Pim de Haan, Jean-Paul S.H. Mulder, Joost C. Lötters, Elisabeth Verpoorte
Stable delivery of liquids to microfluidic systems is essential for their reproducible functioning, especially when supplying flows to organs-on-chips – delicate living models that recreate human physiology on the microscale and thus can be used to reduce the need for animal testing. Most flow control systems are unable to sustain a robust and stable flow in longer experiments (>1 week), particularly
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Study and development of a technique for measuring concentration and mass flow rate for saline solutions Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-08 A.G.A. Caldas, A.M.A. Caldas, C.A.C. Dos Santos, V.A.A. Ochoa, A.B. Souza, K.L. Cezar, P.S.A. Michima
The purpose of this work is the design and construction of a non-invasive meter for concentration in saline solutions and the proposal of a low-cost mass flow meter for absorption refrigeration systems with LiBr/HO. The proposed meter makes use of a capacitive sensor relating the electrical capacitance of the LiBr/HO mixture to the mass fraction of LiBr in the solution. Thus, an experimental apparatus
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Measuring tube structure optimization of coriolis mass flowmeter with liquid hydrogen Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-08 Xiangxiang Pei, Lianyan Yu, Xiang Li, Haohao Xu, Xiaobin Zhang
To improve the sensitivity of the Coriolis mass flowmeter (CMF) when measuring the mass flow rate of liquid hydrogen (LH), this study investigates and compares the performance of measuring tubes with various shapes but identical lengths. The aim is to elucidate the mechanisms how the tube shapes affect the sensitivity of the CMF. An iterative fluid-structure interaction (FSI) calculation framework
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Flow rate measurements of slug flow by pressure differences of a venturi tube with a swirler Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-08 Xiaojun Ma, Qiang Xu, Xuemei Zhang, Haocun Wang, Lulu Li, Liejin Guo
When the elongated bubbles and liquid slugs of slug flow alternately flow through a throttling element, the strong random fluctuations of pressure difference leads to low accuracy of online measurement of gas-liquid flow rates. In this paper, slug flow is converted into an annular flow before entering a venturi tube using a swirler, and the pressure fluctuation amplitude of the gas-liquid two-phase
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Streamlining multi-hole probe calibration using artificial neural networks Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-07 Reyhaneh Banihabib, Herwart Hoenen, Mohsen Assadi
Accurately measuring the three-dimensional flow field characteristics in complex flow fields, particularly in turbomachines, is of utmost importance and is commonly achieved through experimental methods. Multi-hole pressure probes are a proven measuring technique to provide precise readings of flow characteristics in both two-dimensional (2D) and three-dimensional (3D) flow fields. However, manufacturing
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Experimental and numerical study of the gated and ungated ogee spillway Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-03 Chuyao Luo, Abdolmajid Mohammadian, Ioan Nistor, Hanifeh Imanian
This study was carried out by combining numerical modeling and experimental measurements to investigate the hydraulic characteristics of ungated and gated ogee spillways with high head ratios. The primary objective was to validate the use of a numerical model as a complementary approach to the experimental model for simulating the hydraulic behavior of these spillways, providing a more comprehensive
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The discharge coefficient of sharp triangular weir pierced by orifices Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-03-01 Mehdi Zeinivand, Seyedeh negar sadat ahmadi, Mehdi Ghomeshi
Although triangular sharp-crested weirs have less discharge-passing ability compared to rectangular weirs, they have greater accuracy and sensitivity for measuring discharge. In order to enhance the passing-discharge and the discharge coefficient from a sharp-crested-triangular weir, an orifice was created in the weir. In this research, for the first time, several square orifices were created in the
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Visual detection and identification of gas outflow based on physical-algorithmic coupled enhancement method Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-29 Denglong Ma, Ao Liu, Ruitao Wu, Chao Ma, Jianmin Gao, Song Ai, Qiang Dong, Wei Wang, Yunlong Li
The visualization of gas outflow can provide insights into the parameters such as the pressure vessel's leakage status and the clogging of hollow porous structures (e.g. film holes in high-temperature turbine blades). Therefore, it is essential to explore the detection and recognition technology of gas outflow. Infrared imaging detection technology has gained more attention in detecting gas outflow
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Free overfall in triangular channels – A review Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-29 Seyed Vahid Nabavi, Ehsanollah Zeighami, Seyed Mohammad Mirhosseini
The purpose of open channel flow measurement structures is to accurately determine the flow rate by measuring the upstream head relative to a reference level in the control section of the structure. In civil engineering, to measure flow discharge and erosion at the brink of free overfalls, it is necessary to compute the End Depth Ratio (EDR) and the End Depth Discharge (EDD). A free overfall at the
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Accuracy validation of open-circuit respiration chambers for the assessment of energy metabolism and enteric methane emissions in pigs and small ruminants Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-28 Gerardo Mariscal Landín, Ericka Ramírez Rodríguez, Tércia Cesária Reis de Souza, Gerardo Ordaz Ochoa
Respiratory chambers are one of the main methods of obtaining data regarding animal energy metabolism and determine enteric methane emissions from livestock. The boom in research examining methane emissions has led to an increase in the number of facilities where such measurements can be performed. This has concerned various research groups, and emphasis has been placed on implementing a method for
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Design and optimization of hydraulic slide valve spool structure based on steady state flow force Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-25 Ruichuan Li, Zhibo Wang, Jikang Xu, Wentao Yuan, Dongwei Wang, Hailong Ji, Sen Chen
This article studies the structure of hydraulic spool valve and the influence of different pressure differences on steady-state flow force. An improved scheme of designing a jet guide groove on the valve core is proposed to compensate for steady-state flow force. This article uses the CFD method to study the influence of spool valve structural parameters on steady-state flow force. The response surface
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CGAN-ECT: Reconstruction of Electrical Capacitance Tomography images from capacitance measurements using Conditional Generative Adversarial Networks Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-23 Wael Deabes, Alaa E. Abdel-Hakim
Due to the rapid growth of applications of Electrical Capacitance Tomography (ECT) across diverse industrial sectors, there is a pressing demand for swift and high-fidelity methodologies for image reconstruction from raw capacitance measurements. Deep learning, as an effective non-linear mapping tool for complicated functions, has been going viral in many fields including electrical tomography. This
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A performance comparison of the meta model methods for discharge coefficient prediction of labyrinth weirs Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-23 Mahdi Majedi-Asl, Amir Ghaderi, Mehdi Kouhdaragh, Tohid Omidpour Alavian
Weirs are hydraulic structures with various applications, such as flow measurement, flow diverting, and/or flow control. Labyrinth weir as a nonlinear weir with a folded crest enhances the spillway system discharge capacity by increasing the crest length for a given channel width. As a remarkable parameter, the discharge coefficient plays an important role in determining weirs' passing capacity. So
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Hydraulic characteristics of labyrinth sluice gate Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-17 Thaer Hashem, Ahmed Y. Mohammed, Thair J. Alfatlawi
Two hundred experiments were conducted on triangular cross-section gates, folded in one and two-cycle modes, with varying apex angles and opening heights under different upstream flow conditions. The results were analyzed and compared with standard gates under identical hydraulic conditions. The hydraulic performance of the proposed models was then evaluated. The models with smaller internal angles
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Prediction of turbine gas Meter error in high-pressure by CFD techniques: A novel approach to reduce high-pressure calibration (HPC) costs Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-17 Behzad Rahmati, Seyed Hassan Hashemabadi, Arash Khalaf Rezaei
Calibrating gas meters to their operating conditions are ideal for defining accuracy, but obstacles like economics, time, physical limitations, and a lack of high-pressure calibration facilities often prevent this. A Computational Fluid Dynamics (CFD) model was created using the motion equations simultaneously angular momentum balance in steady state and the standard k-ε turbulence model to improve
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Hydraulic jump in a circular stilling basin by using angled baffle blocks Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-16 Hamed Dashtban, Abdorreza Kabiri-Samani, Mostafa Fazeli, Marzieh Rezashahreza
The present study aims to evaluate characteristics of the hydraulic jump formed in a circular stilling basin with baffle blocks. Baffle blocks improve performance of the hydraulic jump and stabilize its position in the basin. In addition to experimental modeling, theoretical relationships were derived to determine the sequent depth ratio and the relative energy loss in circular stilling basins with
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Gas slug parameter measurement based on double embedded U-tube electromagnetic wave phase sensor in gas-liquid slug flow Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-14 Zihui Wei, Mingxuan Li, Ge Liao, Jingyi Zhou, Xingyue Ye, Ning Zhao
Slug flow is widely existed in power engineering, petrochemical industry, nuclear engineering and other fields, and the study of two-phase flow gas slug parameters plays a key role in the precise control of industrial processes. According to the electromagnetic wave propagation theory, considering the cross-correlation algorithm and power spectral density (PSD) principle, a new double embedded U-tube
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Inductive sensing of air bubbles in intravenous fluids: A novel approach for patient safety Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-14 Emrehan Yavsan
In this study, a magnetic sensing approach is proposed for detecting air bubbles in intravenous fluids (IVs). To the author's knowledge, this is the first paper to apply magnetic sensing technology for the detection of air bubbles in an IV fluid. The approach is based on a compact, portable, and cost-effective sensor prototype that utilizes an LC resonator and a microcontroller. To validate the detecting
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Natural surface floaters in image-based river surface velocimetry: Insights from a case study Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-13 Hang Trieu, Per Bergström, Mikael Sjödahl, J.Gunnar I. Hellström, Patrik Andreasson, Henrik Lycksam
This study focuses on utilizing image techniques for river velocity measurement, with a specific emphasis on natural surface floating patterns. Employing a multi-camera system, we conducted 3D measurements on river surfaces, including surface velocity and water surface reconstruction. A pattern-based tracking approach has been adopted to improve the performance of image measurements on different types
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Investigation of the leakage in the flow distribution pair of radial piston hydraulic motors through CFD analysis and experiments Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-13 Chunjin Li, Tao Jiang, Chengyu Liu, Hongrui Xu, Guosheng Shi
The internal leakage of a radial piston motor (RPM) is an unavoidable structural characteristic, and the amount of internal leakage has a critical effect on the volumetric efficiency of the motor. Using the distribution plate as the force body, an equation for the balance between the preload spring force and the hydrodynamic force is analytically derived, the variation range of the clearance of the
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Investigation of flow characteristics in a rectangular spouted fluidized bed using electrical capacitance volume tomography Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-12 Baocun Liu, Daoye Yang, Junnan Zhang, Aofang Guo, Xichen Gu
The characterization of gas-solid flow behavior in rectangular spouted fluidized bed (RSFB) poses significant challenges due to the presence of complex gas-phase vortex flow within the bed. The flow characteristics of gas-solid two-phase flow in RSFB were investigated by using a self-developed 32-electrode electrical capacitance volume tomography (ECVT) system with an imaging speed of 105 frames per
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The optimized design of a ball valve with large stroke and high precision Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-07 Zhe Zhao, Xiaohui Gao, Yongguang Liu
The main objective of this paper is to design a spool profile for a ball valve with a rotary stroke of up to 240°, which allows the flow characteristics of the regulating valve to be linearized with high accuracy. Due to the novel structure, the spool profile is difficult to be linearized with high accuracy using projective and geometric methods. Based on the above problems, this paper proposes a spool
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Numerical simulation of the temperature rise and cavitation flow in a hydraulic slide valve Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-05 Wen An, Le Ren, Yangyang Bai, Gang Bao
The cylindrical slide valve is an essential component of the hydraulic system, which regulates and controls the oil. When hydraulic oil flows through the slide valve port, cavitation often occurs due to a sharp pressure drop, affecting the hydraulic system's stability. Therefore, the study of cavitation phenomena in valves is an important topic. This paper conducts a transient numerical simulation
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Real-time embedded pressure and flow rate sensor in polydimethylsiloxane-based microchannel using fiber Bragg grating technique Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-03 Zijun Zhang, Tuo Hou, Yong Ren, Chengbo Wang, Zhukun Wang, Han Pan, Peiyun Li, Richard Smith, Jing Wang
Polydimethylsiloxane (PDMS) has attracted huge interest as the soft material for microchannel fabrication, due to its high biocompatibility, durability and low cost. The rheological properties of the fluid and the deformable properties of PDMS substrate have imposed significant impacts on the fluid flow in the microchannel, therefore it is of critically importance to develop sensing methods for the
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Analysis of Delta in-out for Irish natural gas distribution network Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-02-03 U. Chavan, A. Reynolds, M. Carr, L. Walsh
This article investigates the issue of Unaccounted for Gas (UAG) in the natural gas distribution network of Ireland, focusing on the (i.e. the difference between the gas entering and leaving the network). The study applies the methodology developed for Italian distribution networks to Gas Networks Ireland (GNI), the sole Distribution System Operator (DSO) in Ireland. The analysis covers the period
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Examining the interfacial behavior of non-Newtonian gas-liquid two-phase flow in horizontal square microchannels Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-30 Haslinda Kusumaningsih, Indarto, Akimaro Kawahara, I.G.N.B. Catrawedarma, Deendarlianto
This study investigates the flow dynamics of a non-Newtonian two-phase flow within a horizontal square microchannel. The experimental apparatus employed an acrylic channel with a side length of 8 × 10 m. Nitrogen served as the test gas, and the test liquids consisted of water and CMC (Carboxymethylcellulose) aqueous solutions at concentrations of 0.2 and 0.4 %wt. The superficial velocity of working
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Mathematical modeling applied to the uncertainty analysis of a tank prover calibration: Understanding the influence of calibration conditions on the GUM validation using the Monte Carlo method Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-29 H.F.F. Castro
This paper presents the calibration of the volume of a tank prover using the gravimetric method. A mathematical model of this calibration has been developed and it is non-linear. An evaluation of measurement uncertainty of the tank prover calibration has been carried out using the “Guide to the Expression of Uncertainty in Measurement” (GUM) and the Monte Carlo method. The measurement results have
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Effect of crest height on the stage-discharge formula for triangular broad-crested devices Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-28 Alessio Nicosia, Maria Angela Serio, Costanza Di Stefano, Vito Ferro
Flow discharge can be measured by weirs through the upstream flow depth and a stage-discharge formula. Triangular broad-crested weirs represent valid measurement devices as they are characterized by accurate measures, can convey large discharges avoiding a significant gain of the upstream water depth, and are not characterized by downstream submergence up to critical water depth. However, the flow
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Hydraulic characterization of turbulent flow through and over a porous media Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-26 Saeed Salehi, Amir H. Azimi
In order to calculate and predict the discharge through and over a porous media with turbulent flow, a series of experimental models of box gabion weirs were tested consists of aggregates with four mean diameters. Gabion models with four gabion lengths were selected, and experiments were performed in relatively large-scale flume with a width of 1200 mm. The coefficient of discharge was determined in
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Wall shear stress measurement of turbulent bubbly flows using laser Doppler displacement sensor Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-23 Yoshihiko Oishi, Sho Onuma, Yuji Tasaka, Hyun Jin Park, Yuichi Murai, Hideki Kawai
A novel wall shear stress meter is developed to promote studies of frictional drag reduction by injecting air bubbles into a turbulent boundary layer. Such studies require a tool having a time resolution sufficiently high to capture the unsteady effect of turbulent characteristics due to various bubble passage patterns. The present study adopts the principle of the heterodyne interferometer to capture
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Development of artificial neural networks for the prediction of the pressure field along a horizontal pipe conveying high-viscosity two-phase flow Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-23 W. Ajbar, L. Torres, J.E.V. Guzmán, J. Hernández-García, A. Palacio-Pérez
Pressure fluctuations are one of the primary concerns regarding the safety of two-phase flows in pipelines. Therefore, it is crucial to closely monitor pressure variations and predict their spatiotemporal behavior to the greatest extent possible. In this article, we present the development of a set of models based on artificial neural networks (ANN) to predict the time-dependent behavior of the pressures
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Challenges with 3D printed parts for hydraulic experimental benchmarks: A perforated plate case study Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-23 Wallen Ferreira De Souza, Edson Ribeiro, Higor Fabiano Pereira de Castro, Maria Auxiliadora Fortini Veloso, Graiciany de Paula Barros, Andre Augusto Campagnole dos Santos
Additive manufacturing using fused deposition modeling (FDM) or fused filament fabrication (FFF), commonly known as 3D printing, has become a popular method for prototyping method as it allows complex parts to be produced at a lower cost. Although FDM parts are increasingly being used in experimental analyses in all areas of engineering, there is limited information on their effects on fluid flow and
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Investigation on wear induced by solid-liquid two-phase flow in a centrifugal pump based on EDEM-Fluent coupling method Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-23 Wenjie Cheng, Haoqi Fan, Wenjing Cheng, Chunlei Shao
Centrifugal pump is the key equipment to conveying solid-liquid two-phase mixtures, and the abrasive wear caused by solid particles is of great importance to the structural integrity of pumps. In order to investigate effects of solid-phase properties on the internal flow characteristics of the pump, especially reveal the wear mechanism of solid particles on the wall surface, the coupling method of
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Low speed wind tunnel moving ground test bed design Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-22 Łukasz Kędzierski, Grzegorz Krysztofiak, Radosław Praski, Edvin Podlevski, Jakub Kapuściński, Adam Liberacki, Marek Miller, Maciej Osiewicz
Łukasiewicz Research Network - Institute of Aviation is a leader on the Polish market in aerodynamic research. Facing innovative challenges, it carries out research work for the Polish industry. Taking into account the needs of the automotive industry and the desire to develop electromobility in Poland, a low-cost project for the construction of a test bed for testing ground vehicles with a moving
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Features selection for recognition of severe slugging in a long pipeline with an S-shaped riser by decision tree Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-20 Qiang Xu, Xiangyu Li, Shuaizhi Jiang, Xinyu Wang, Chenying Liu, Chan Wang, Qiuxiang Chang
In deep-sea oil and gas, S-shaped riser is the key equipment to transport the multiphase working substance produced underwater to the surface platform. The occurrence of severe slugging will seriously threaten the safe production of offshore oil and gas fields. Therefore, accurate and rapid recognition of hazardous flow patterns such as severe slugging is an urgent need to ensure the safety of multiphase
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Flow investigation of two-stand ultrasonic flow meters in a wide dynamic range by numerical and experimental methods Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-20 Mario Javier Rincón, Anders Caspersen, Nicolai Thorenfeldt Ingwersen, Martino Reclari, Mahdi Abkar
The enhancement of two-stand ultrasonic flow meters relies upon obtaining a precise understanding and prediction of their complex flow physics throughout their entire dynamic range of operation. This study provides a comprehensive numerical and experimental investigation of the flow physics of a typical two-stand ultrasonic flow meter by industry standards. Predictions based on computational fluid
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Non-bridge NTC thermistor anemometer with programmable sensitivity Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-20 Aleksandra Jerotić, Danilo Đokić, Petar Atanasijević, Pedja Mihailovic
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Extending the pressure-time method to bend using 3D-CFD Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-17 Mehrdad Kalantar Neyestanaki, Georgiana Dunca, Pontus Jonsson, Michel J. Cervantes
According to the IEC 60041 standard, the pressure-time method (1D PTM) can be employed to determine the flow rate in hydraulic turbines. This method assumes a one-dimensional flow and applies to straight pipes with uniform cross-sections, with specific restrictions on the pipe length, fluid velocity, and distance between the measurement sections from any irregularities in the pipeline. However, challenges
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Hydraulic characteristics and flow measurement performance of portable primary and subsidiary fish-shaped flumes in U-shaped channels Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-17 Chenhao Zhang, Xin Li, Renyu Zhou, Bernard A. Engel, Yubao Wang
Accurate measurement of irrigation water consumption in small channels is an important link in achieving reasonable irrigation area management and agricultural water pricing and improving agricultural irrigation water use efficiency. Fixed water measuring flumes have a high construction cost and are prone to causing local channel sedimentation, compromising the safety of channel water transmission
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Measurement characteristics of cone meter with bionic non-smooth surface Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-11 Mengmeng Li, Acong Duan, Rui Huang, Denghui He
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Experimental and modeling study on liquid film thickness of horizontal gas-liquid annular flow using ultrasonic method Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-11 Mi Wang, Yuxin Bai, Jiegui Liu, Dandan Zheng, Lide Fang
In horizontal annular flow, the high gas velocity leads to the strong randomness, rapidity and complexity of the structure and dynamic characteristics of gas-liquid interfacial wave. As one of the important parameters to describe the interfacial wave, the liquid film thickness is significant to study the hydrodynamic characteristics of the gas-liquid two-phase flow. In this paper, the ultrasonic echo
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In-lab X-ray particle velocimetry for multiphase flows: Design principles and demonstration of O(1 kHz) XPV Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-11 Jason T. Parker, Till Dreier, Daniel Nilsson, Simo A. Mäkiharju
We combine X-ray-specific tracer particles, a photon counting detector, and a liquid metal jet anode X-ray source to achieve (1 kHz) X-ray imaging speeds in the laboratory, 15 faster than previous comparable studies with (50 m) tracers. To examine the limits of this measurement technique we conduct three experiments: 2D and 3D X-ray particle velocimetry (XPV) of Poiseuille pipe flow, 3D XPV of flow
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Experiments on capacitance based liquid flow meter with parallel channels used in two-phase Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-08 Binet Monachan, Rijo Jacob Thomas, Mathew Skaria, K.A. Shafi, Gokul Hareesh, B. Emmanuel, S. Kasthurirengan, Haresh Dave, A.K. Sahu
A new flow meter has been proposed to measure liquid mass flow rate in a two-phase system. Irrespective of the input flow, the proposed system transforms incoming stream into laminar stratified flow. This configuration offers a promising avenue for assessing liquid flow rates in a two-phase system by leveraging measurements of liquid column height. Extensive performance assessments have been conducted
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Effects of ramp slope and discharge on hydraulic performance of submerged hump weirs Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-06 Arash Ahmadi, Amir H. Azimi
Hump weirs are amongst conventional hydraulic structures for water level control and discharge measurement. The slope in the upstream and downstream ramps is a design parameter that affects the performance of Hump weirs in both free and submerged flow conditions. A series of numerical simulations was performed to investigate the effects of ramp slope and discharge on discharge characteristics and water
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Investigation of cavitation characteristics in an aircraft centrifugal fuel pump Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-06 Qi Liu, Xinyang Qi, Zuchao Zhu, Yongcao Gao, Guangwu Yang, Chuancang Li, Luo Sun
Cavitation is a classic gas–liquid two-phase flow phenomenon that needs to be restricted for the hydraulic performance enhancement of centrifugal pumps. However, due to the particularity of fuel mediums and rigorous aviation conditions, the characteristics of cavitation occurring in aircraft centrifugal fuel pumps have not been elaborated. In this research, cavitation characteristics in an aircraft
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Numerical simulation of the flow passing through the side weir-gate Flow Meas. Instrum. (IF 2.2) Pub Date : 2024-01-01 Veysi Kartal, M. Emin Emiroglu
A combination of a weir and a gate is called the combined weir-gate. The hydraulic behaviour of the combined side weir-gate was numerically and experimentally investigated in the study. The findings were evaluated to investigate the impact of combined flow and weir-gate geometry characteristics on the discharge capacity of the side weir-gate. Thirty-three numerical simulations were conducted. The numerical