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Thermal contact conductance model of rough surfaces with inclination based on three-dimensional fractal theory

Xianguang Sun (College of Sciences, Northeastern University, Shenyang, China)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 1 January 2024

Issue publication date: 7 March 2024

104

Abstract

Purpose

The purpose of this study is to establish a thermal contact conductance model of rough surfaces with inclination based on three-dimensional fractal theory.

Design/methodology/approach

The effects of contact load, inclination angle, fractal dimensional and fractal roughness on thermal contact conductance of rough surfaces were studied using numerical simulation.

Findings

The results show that the thermal contact conductance of the rough surface increases with the increase of contact load and fractal dimension and decreases with the increase of fractal roughness and inclination angle. The inclination angle of the rough surface has an important influence on the thermal contact conductance of the rough, and it is a factor that cannot be ignored in the study of the thermal contact conductance of rough surfaces.

Originality/value

A thermal contact conductance model of rough surfaces with inclination based on three-dimensional fractal theory was established in this study. The achievements of this study provide some theoretical basis for the investigation of the thermal contact conductance of rough surfaces.

Keywords

Citation

Sun, X. (2024), "Thermal contact conductance model of rough surfaces with inclination based on three-dimensional fractal theory", Aircraft Engineering and Aerospace Technology, Vol. 96 No. 2, pp. 265-272. https://doi.org/10.1108/AEAT-02-2023-0054

Publisher

:

Emerald Publishing Limited

Copyright © 2023, Emerald Publishing Limited

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