Thermal Analysis of A Brake Disc Rotor

Abstract

The present study examines the phenomenon of heat distribution on the disc while braking. An attempt was
made to study numerically, using CFD, the effect of vane-shape on the flow-field and heat transfer characteristics of a
disc brake rotor for different configurations and at different speeds. Heat distribution on the brake disc is caused by the
change of the kinetic energy into the mechanical energy. The energy change occurs during the process of braking due to
the friction between the surfaces of the disc with the caliper pad. Friction results in the increase of temperature. This
phenomenon is very important to be highlighted in order to learn the characteristics of heat distribution occurring on the
various models of rotor discs. Thermal analysis of the rotor of disc brake is aimed to evaluate the performance of disc
brake rotor of a car under different braking conditions. Also, the analysis for the variation in the fin configuration of
vented disc brake is intended. Numerical simulations are conducted to determine the desired parameters. The simulation
results would be useful for identifying the influence of different models of disc brake with regard to the distribution of
heat.