発熱素子冷却用のマルチフィン形熱伝導体に関する研究 : 第3報, 発熱素子と熱伝導体間の接触熱抵抗への非等方性表面粗さの影響についての理論的考察

概要

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To predict the effect of anisotropic surface roughness on the contact conductance of the interstitial gas layer between nominally flat surfaces, the applicability of the Gaussian surface theory that was developed for isotropic surfaces is theoretically extended to surfaces with surface slope anisotropy. It is proven that the effect of local gap variation due to the anisotropic surface roughness can be predicted using the same equation that was previously obtained for the case of isotropic surfaces. Also, the experimental data for actual conductors are examined, using the present theory. It is found that, in the range corresponding to the contact between the component and the conductor, the local gap effect is negligibly small. From this result, the adequacy of the simple approximation based upon the mean gap is confirmed
一般社団法人日本機械学会の論文
1992-10-25