TY - JOUR
T1 - Numerical Study on Fluid Flow and Heat Transfer Characteristics of a Ventilated Brake Disc Connected to a Wheel
AU - Lee, Byung Ju
AU - Chung, Jin Taek
AU - Jung, Yunho
AU - Kim, Honglae
AU - Lee, Seungpyo
AU - Kim, Hee Yeol
N1 - Publisher Copyright:
© 2018 SAE International. All Rights Reserved.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2018/10/5
Y1 - 2018/10/5
N2 - The role of a brake disc is to convert the kinetic energy of automobiles into thermal energy caused by friction between the brake pads and disc surfaces. The braking performance of an overheated disc is decreased due to hot judder and fade. Hence, the cooling technology of a brake disc is one of the most important issues related to automobile safety. In the present study, the fluid flow and heat transfer analysis of a ventilated brake disc are conducted numerically. Some geometries of automotive parts such as bearings, hubs and wheels are considered in this study. The commercial code ANSYS CFX is used to simulate the fluid flow and the conjugate heat transfer which includes conduction and convection. To evaluate the cooling performance in each case, the results, including the flow patterns of cooling air inside the wheel and the heat transfer coefficient distribution at the disc surfaces, were investigated and compared for various disc-hub combinations.
AB - The role of a brake disc is to convert the kinetic energy of automobiles into thermal energy caused by friction between the brake pads and disc surfaces. The braking performance of an overheated disc is decreased due to hot judder and fade. Hence, the cooling technology of a brake disc is one of the most important issues related to automobile safety. In the present study, the fluid flow and heat transfer analysis of a ventilated brake disc are conducted numerically. Some geometries of automotive parts such as bearings, hubs and wheels are considered in this study. The commercial code ANSYS CFX is used to simulate the fluid flow and the conjugate heat transfer which includes conduction and convection. To evaluate the cooling performance in each case, the results, including the flow patterns of cooling air inside the wheel and the heat transfer coefficient distribution at the disc surfaces, were investigated and compared for various disc-hub combinations.
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U2 - 10.4271/2018-01-1878
DO - 10.4271/2018-01-1878
M3 - Conference article
AN - SCOPUS:85054005622
VL - 2018-October
JO - SAE Technical Papers
JF - SAE Technical Papers
SN - 0148-7191
IS - October
T2 - SAE 36th Annual Brake Colloquium and Exhibition, BRAKE 2018
Y2 - 14 October 2018 through 17 October 2018
ER -