Microscale heat transfer effects under high incident heat flux conditions

Gregory J. Kowalski; Richard A. Whalen

doi:10.1117/12.294478

11 December 1997 Microscale heat transfer effects under high incident heat flux conditions

Gregory J. Kowalski, Richard A. Whalen

Proceedings Volume 3151, High Heat Flux and Synchrotron Radiation Beamlines; (1997) https://doi.org/10.1117/12.294478
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

A criterion is developed for determining the range of microscale heat transfer effects in systems exposed to laser radiation. Criteria in terms of the time and spatial scale for using microscale heat transfer mechanisms have been reported. The significance of microscale heat transfer effects during high incident laser radiation is investigated. Numerical simulations show the microscale heat transfer effects are scaleable with respect to the incident laser radiation. The significance of the microscale mechanism is shown to be dependent on the rate of heating. There is good agreement with values reported in the literature and the present model's predicted temperatures and normalized reflectance changes for a thermoreflectance problem.

Citation Download Citation

Gregory J. Kowalski and Richard A. Whalen "Microscale heat transfer effects under high incident heat flux conditions", Proc. SPIE 3151, High Heat Flux and Synchrotron Radiation Beamlines, (11 December 1997); https://doi.org/10.1117/12.294478

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