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.

中文翻译：

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基于三维分形理论的倾斜粗糙表面接触热导模型

目的

本研究的目的是基于三维分形理论建立具有倾斜度的粗糙表面的热接触热导模型。

设计/方法论/途径

利用数值模拟研究了接触载荷、倾角、分形维数和分形粗糙度对粗糙表面接触热导的影响。

发现

结果表明，粗糙表面的接触热导随着接触载荷和分形维数的增大而增大，随着分形粗糙度和倾角的增大而减小。粗糙表面的倾斜角度对粗糙表面的接触热导有重要影响，是粗糙表面接触热导研究中不可忽视的因素。

原创性/价值

建立了基于三维分形理论的倾斜粗糙表面接触热导模型。本研究成果为粗糙表面接触热导的研究提供了一定的理论依据。