Abstract
Keywords: brake disc, ventilated disc, heat dissipation, CFD
Development of ventilated discs is a complex process due to numerous parameters that have to be considered and optimised. Computational Fluid Dynamics (CFD) has become a powerful tool for analysing existing and generating new ventilated disc designs. However, experimental studies are still playing an important role in disc development. It should be noted that optimisation of disc convective cooling is only one, though important step in ensuring an adequate brake design. Disc structural integrity and NVH characteristics must be also optimised. In addition, disc casting and machining processes are crucial for achieving high performance product of consistent quality. The paper describes the methodology used for designing, analysing and optimising ventilated discs. Theoretical and experimental flow and heat transfer studies are being used in order to investigate and optimize the shape, size, position and number of disc vanes. CFD was extensively used and different modelling techniques applied. Experiments were performed on a Spin Rig, using specially prepared disc models and actual discs.