Experimental study using infrared thermography on the convective heat transfer of a TGV brake disc in the actual environment

Monica Siroux; Souad Harmand; Bernard Desmet

doi:10.1117/12.421057

23 March 2001 Experimental study using infrared thermography on the convective heat transfer of a TGV brake disc in the actual environment

Monica Siroux, Souad Harmand, Bernard Desmet

Author Affiliations +

Proceedings Volume 4360, Thermosense XXIII; (2001) https://doi.org/10.1117/12.421057
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

Abstract

Local and mean convective heat transfer from a rotating TGV brake disc model in the actual environment and submitted to an air flow parallel to the disc surface is studied experimentally in this paper. The experimental technique is based on the use of a heated thermally thick disc combined with the technique of temperature measurement by infrared thermography. The local convective heat transfer coefficient from the disc surface is identified by solving the steady state heat equation by finite difference method using the experimental temperature distribution as boundary conditions. These tests were carried out for rotational speed (omega) between 325 and 2000 rpm (rotational Reynolds number Re between 88500 and 545000) so as to obtain laminar and turbulent flow on the disc, and for air flow velocity U ranging between 0 and 12 m s^-1 (air flow Reynolds number Re₀ between 0 and 153000).

Citation Download Citation

Monica Siroux, Souad Harmand, and Bernard Desmet "Experimental study using infrared thermography on the convective heat transfer of a TGV brake disc in the actual environment", Proc. SPIE 4360, Thermosense XXIII, (23 March 2001); https://doi.org/10.1117/12.421057

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