Browse Publications Technical Papers 2018-01-1878
2018-10-05

Numerical Study on Fluid Flow and Heat Transfer Characteristics of Ventilated Brake Disc Connected to a Wheel 2018-01-1878

The role of brake disc is to convert kinetic energy of automobiles into thermal energy caused by friction between brake pads and disc surfaces. Brake performance of overheated disc is decreased due to hot judder and fade. Hence, cooling technology of brake disc is one of the most important issues related to automobile safety. In the present study, fluid flow and heat transfer analysis of ventilated brake disc are numerically conducted. Some geometries of automotive parts such as bearing, hub and wheel are considered in this study. The commercial code ANSYS CFX is used to simulate fluid flow and conjugate heat transfer which includes conduction and convection. To evaluate cooling performance of each case, the results including flow patterns of cooling air inside the wheel and heat transfer coefficient distribution at disc surfaces were investigated and compared for various disc-hub combinations.

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