scholarly journals Discussion: “The Use of Analog Computers for Determining Surface Parameters Required for Prediction of Thermal Contact Conductance” (Henry, J. J., and Fenech, H., 1964, ASME J. Heat Transfer, 86, pp. 543–550)

1964 ◽  
Vol 86 (4) ◽  
pp. 550-551
Author(s):  
A. M. Clausing
Keyword(s):  
Heat Transfer ◽  
Thermal Contact ◽  
Thermal Contact Conductance ◽  
Contact Conductance ◽  
Surface Parameters

Recent Developments in Contact Conductance Heat Transfer

1988 ◽  
Vol 110 (4b) ◽  
pp. 1059-1070 ◽  
Author(s):  
L. S. Fletcher
Keyword(s):  
Heat Transfer ◽  
Thermal Contact ◽  
Thermal Conductance ◽  
Thermal Contact Conductance ◽  
Contact Conductance ◽  
Thermal Rectification ◽  
Numerical Studies ◽  
Wide Range ◽  
Theoretical Investigations ◽  
Recent Developments

The characteristics of thermal contact conductance are increasingly important in a wide range of technologies. As a consequence, the number of experimental and theoretical investigations of contact conductance has increased. This paper reviews and categorizes recent developments in contact conductance heat transfer. Among the topics included are the theoretical/analytical/numerical studies of contact conductance for conforming surfaces and other surface geometries; the thermal conductance in such technological areas as advanced or modern materials, microelectronics, and biomedicine; and selected topics including thermal rectification, gas conductance, cylindrical contacts, periodic and sliding contacts, and conductance measurements. The paper concludes with recommendations for emerging and continuing areas of investigation.

Combined Parameter and Function Estimation in Heat Transfer With Application to Contact Conductance

1988 ◽  
Vol 110 (4b) ◽  
pp. 1046-1058 ◽  
Author(s):  
J. V. Beck
Keyword(s):  
Heat Transfer ◽  
Parameter Estimation ◽  
Heat Conduction Problem ◽  
Thermal Contact ◽  
Temperature Measurements ◽  
Thermal Contact Conductance ◽  
Transient Temperature ◽  
Function Estimation ◽  
Contact Conductance

This paper discusses parameter estimation, function estimation, and a combination of the two. An example of parameter estimation is the determination of thermal conductivity of solids from transient temperature measurements. An example of function estimation is the inverse heat conduction problem, which uses transient temperature measurements to determine the surface heat flux history. The examples used herein involve the determination of the thermal contact conductance. Two sets of very good data are analyzed. One set of steady-state data was obtained by Antonetti and Eid (1987). The other set was obtained by Moses and Johnson (1986) under transient conditions for periodic contact. Both sets of data are used to illustrate parameter, function, and combined estimation. It is demonstrated that the proposed methods are more powerful then commonly accepted methods. Many other heat transfer problems can be treated using the proposed techniques.

Influence of Flatness and Waviness of Rough Surfaces on Surface Contact Conductance

2003 ◽  
Vol 125 (3) ◽  
pp. 394-402 ◽  
Author(s):  
S. Sunil Kumar ◽  
K. Ramamurthi
Keyword(s):  
Surface Roughness ◽  
Material Properties ◽  
Thermal Contact ◽  
Thermal Contact Conductance ◽  
Threshold Values ◽  
Average Roughness ◽  
Contact Conductance ◽  
Surface Parameters ◽  
Wavy Surfaces ◽  
Effect Of Surface

The effect of surface roughness, waviness and flatness deviations on thermal contact conductance is predicted. Threshold values of the surface parameters which do not adversely influence thermal contact conductance are determined. Flatness deviations less than ten times the average roughness and waviness less than about four times the average roughness do not significantly affect the contact conductance. A correlation is developed for contact conductance in terms of the surface parameters, the material properties and the contact pressure at the joint. Experiments are conducted in vacuum with rough, non-flat and wavy surfaces and the experimental results are demonstrated to agree well with the predictions.

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