Numerical investigation into thermal contact conductance between linear and curvilinear contacts

Document Type : Article


School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran.


Heat transfer has considerable applications in different industries such as designing of heat exchanger, nuclear reactor cooling, control system for spacecraft and designing of microelectronics cooling. As the surfaces of two metals contact each other, this issue becomes so crucial. Thermal contact resistance is one of the key physical parameters in heat transfer of mentioned surfaces. Measuring the experimental value of thermal contact resistance in laboratory is highly expensive and difficult. As an alternative, numerical modeling methods could be engaged. In this study, Inverse problem method solution is utilized as a proper method for estimation of thermal contact resistance value. In this order, three different configurations (flat-flat, flat-cylinder, and cylinder-cylinder) were utilized in two steady and unsteady state conditions to predict the value of thermal contact resistance. In conclusion, the final results establish the fact that the inverse problem method solution can predict thermal contact resistance values between contacting surfaces.


Main Subjects

1.Kumar, S. and Tariq, A. Determination of thermal contact conductance of at and curvilinear contacts by transient approach", Exp. Therm. Fluid. Sci., 88, pp. 261-76 (2017).
2. Shojaeefard, M.H. and Goudarzi, K. The numerical estimation of thermal contact resistance in contacting surfaces", Am. J. App. Sci., 5, pp. 1566-71 (2008).
3. Kumar, S. and Tariq, A. Steady state experimental investigation of thermal contact conductance between curvilinear contacts using liquid crystal thermography", Int. J. Therm. Sci., 118, pp. 53-68 (2017). 4. Clausing, A.M. and Chao, B. Thermal contact resistance in a vacuum environment", J. Heat Transfer., 87, pp. 243-50 (1965). 5. Marotta, E.E., Fletcher, L.S., and Dietz, T.A. Thermal contact resistance modeling of non-at, roughened surfaces with non-metallic coatings", J. Heat Transfer., 123, pp. 11-23 (2001). 6. Mikic, B. and Rohsenow, W. Thermal contact resistance", Technical Report No. 4542-41, Mech. Eng. Department, MIT (1966). 7. Thomas, T. and Sayles, R. Random process analysis of e_ects of waviness on thermal contact resistance", Therm. Phys. Heat Transfer. Conf. (1975). 8. Burghold, E., Frekers, Y., and Kneer, R. Determination of time-dependent thermal contact conductance through IR-thermography", Int. J. Therm. Sci., 98, pp. 148-55 (2015). 9. Baran, I., Tutum, C.C., and Hattel, J.H. The e_ect of thermal contact resistance on the thermosetting pultrusion process", Comp. Part. B. Eng., 45, pp. 995- 1000 (2013). 10. Tarantola, A., Inverse Problem Theory and Methods for Model Parameter Estimation, Society for Industrial and Applied Mathematics, Philadelphia (2005).