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On an Efficient Simulation Approach for Estimating the Cooling Performance of Automotive Vented Disc Brakes under the Scenario of Emergency Braking
- Yang Zhang - China Automotive Technology & Research Center Co. Ltd. (CATARC), China ,
- Rui Dou - China Automotive Technology & Research Center Co. Ltd. (CATARC), China ,
- Haidong Yuan - China Automotive Technology & Research Center Co. Ltd. (CATARC), China ,
- Jing Li - China Automotive Technology & Research Center Co. Ltd. (CATARC), China
Journal Article
15-15-01-0002
ISSN: 2770-3460, e-ISSN: 2770-3479
Sector:
Citation:
Zhang, Y., Dou, R., Yuan, H., and Li, J., "On an Efficient Simulation Approach for Estimating the Cooling Performance of Automotive Vented Disc Brakes under the Scenario of Emergency Braking," SAE Int. J. Passeng. Veh. Syst. 15(1):17-32, 2022, https://doi.org/10.4271/15-15-01-0002.
Language:
English
Abstract:
This article presents a novel aero-thermal coupled simulation approach for
estimating the cooling performance of automotive vented disc brakes under the
scenario of emergency braking. This approach couples the quasi-steady
computational fluid dynamics (CFD) analysis in the fluid domain and the
transient thermal calculation in the solid domain, and no finite element method
(FEM)-based calculation is involved in the simulation. An advanced coupling
strategy is proposed and used in the approach to solve the problem of boundary
mismatch when data exchanging between the solid and fluid domains, and a
specific point-in-polygon (P-in-P) algorithm is incorporated into the approach
for a precise calculation of the braking heat flux through the brake disc. This
approach has been implemented to analyze the temperature change of the vented
disc brake for a real vehicle, and the results show that it is able to replicate
the real pattern of heat generation via friction on the surface of the brake
disc and accurately predict the temperature peak inside the brake disc. Such an
approach has a high potential of engineering application to estimate the cooling
performance of different types of automotive frictional brakes under other more
complicated scenarios.