EFFECTS OF MULTIPLE SOURCES IN THE CONTACT CONDUCTANCE THEORY

被引：11

作者：

BECK, JV

机构：

[1] MICHIGAN STATE UNIV,DIV ENGN RES,E LANSING,MI 48823

[2] SANDIA LABS,ALBUQUERQUE,NM 87115

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 1979年 / 101卷 / 01期

关键词：

Compendex;

D O I：

10.1115/1.3450903

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An analysis of regularly spaced disk sources on the surface of a semi-infinite body is given and related to steady-state contact conductance theory. It is shown that simple superposition utilizing the steady-state temperature distribution for a single typical disk source is not valid since a steady state does not exist for the temperature resulting for an infinite number of regularly spaced sources on the surface of a semi-infinite solid. A novel analysis is presented that treats the transient surface temperature in such a manner that a steady-state conductance is derived. The conductance results are compared with those obtained by M. M. Yovanovich who uses a complementary analysis. The method of analysis can be applied to other disk spacings and to random distribution of contacts. Also considered is the case of contact radius being a uniformly-distributed random variable which yielded the results of increased contact resistance compared to that using the average contact radius.

引用

页码：132 / 136

页数：5