Effect of Brake Disc Design on Heat Transfer Dispersion

The selection of an appropriate disc geometry plays a pivotal role in optimizing heat dissipation. This study investigates the substantial influence of the geometry of automotive brake discs on their thermal behavior. Three distinct configurations were rigorously analyzed, namely, standard full rotor (SFR); standard ventilated radial vane rotor with rounded vanes (SRV-R); cross drilled (CD) and a rotor with diamond and teardrop pillars (DTDP) instead of vanes. This research explores the heat generated through friction during the braking process across various designs of disc brake rotors. The results highlight that disc geometry plays a crucial role in the thermal management of the system. The most critical aspect is how much heat is dissipated within the rotor, for different rotor designs. Identifying the design that generates the highest temperature, i.e. lowest heat transfer coefficient, is essential, as it could indicate possible material degradation and brake disc failure risks. These findings provide valuable guidance to the automotive industry in designing more efficient brake discs for improved heat dissipation and performance.