Abstract
Keywords:
Brake cooling, Rotor, CFD
Abstract
One of the important cooling methods in the front brake system is the heat dissipation through the air. To define the convective condition in the front brake system it is important to understand air flow condition. But the region of the front brake system has a very complex geometry, and the geometric complexity is a reason for the complicated air flow in the front brake system. So, three-dimensional computational flow analysis is introduced to describe the air flow in the front brake system. In this study, a general-purpose CFD package was used to simulate the air flow around the front brake of the small truck. In order to build the computational model there were some assumptions. All components influencing the air flow to the brake disk were simplified. The steady state was assumed so as not to consider the unsteady interaction between the rotor and the stationary parts such as caliper, knuckle in the study. To evaluate the brake convective cooling performance the average heat transfer coefficient on the brake rotor surfaces was calculated. The dust cover was modified to improve the cooling performance. The simulation of the modified front brake system was also performed.