In this study, a numerical method combining the HLLC solver and FV-WENO scheme is proposed to accurately simulate the behavior of multiphase compressible fluids and investigate the formation process of water jets. The HLLC solver approximates the conservation equations of the fluid by using numerical fluxes from the approximate Riemann problem, while the FV-WENO scheme improves the accuracy of the numerical solution by employing the weighted essentially non-oscillatory (WENO) reconstruction method. The combination of these methods allows for a more accurate simulation of the behavior of multiphase compressible fluids, leading to an accurate depiction of the formation process of water jets. By simulating the interaction between underwater shock waves from explosions and single or multiple spherical bubbles, we study the generation, development, and collapse of water jets during the bubble collapse process. By revealing the characteristics of the load during the formation of water jets and the interaction mechanisms between bubbles, our study provides support for further research on water jet phenomena. The formation process of water jets is of great significance for understanding the propagation of underwater shock waves and structural damage. Through this study, we delve into the mechanism of water jet formation, providing a new perspective on the propagation of underwater shock waves and structural damage. Our research results demonstrate that the application of the HLLC solver and FVWENO scheme in water jet simulation effectively improves the accuracy and precision of the numerical solution.

中文翻译：

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水下爆炸下球形气泡破裂引起的水射流载荷数值模拟

在这项研究中，提出了一种结合HLLC求解器和FV-WENO格式的数值方法来精确模拟多相可压缩流体的行为并研究水射流的形成过程。HLLC 求解器利用近似黎曼问题的数值通量来近似流体守恒方程，而 FV-WENO 方案则通过采用加权本质非振荡 (WENO) 重建方法来提高数值解的精度。这些方法的结合可以更准确地模拟多相可压缩流体的行为，从而准确地描述水射流的形成过程。通过模拟水下爆炸冲击波与单个或多个球形气泡之间的相互作用，研究气泡破裂过程中水射流的产生、发展和破裂。通过揭示水射流形成过程中的载荷特征以及气泡之间的相互作用机制，我们的研究为水射流现象的进一步研究提供了支持。水射流的形成过程对于理解水下冲击波的传播和结构损伤具有重要意义。通过这项研究，我们深入研究了水射流的形成机制，为研究水下冲击波的传播和结构损伤提供了新的视角。我们的研究结果表明，HLLC求解器和FVWENO格式在水射流模拟中的应用有效地提高了数值求解的精度和精度。