ARTICLE:

• PARAMETRIC STUDY OF DISC BRAKE ROTOR WITH DIAMOND AND TEAR-DROP PILLARS  download article

Lisa Wallis
Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

Eddie Leonardi
Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

Brian E. Milton
Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales; Faculty of Engineering, University of Technology Sydney, Sydney, Australia 2052

Phillip Joseph
Disc Brakes Australia, Unit 33, Slough Business Park, Holker Street, Silverwater, Australia 2128

ABSTRACT

This investigation is part of an ongoing research project studying the effect of different disc brake rotor geometries on their airflow and heat transfer. This paper reports results from a CFD code that has been used to investigate a rotor with diamond and tear-drop pillars (DTDP). The advantages of the DTDP rotor over and equivalent straight radial vane (SRV) rotor is substantial. The heat transfer within the passages of the DTDP rotor was found to be more than 57% greater than that predicted by established correlations for an equivalent SRV rotor. It was also found that for both the SRV and DTDP rotors, over 26% more heat is lost from the free side friction surface than the hub side friction surface. The development of the flow within the passages of the DTDP rotor as rotational speed increases is also noted.

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301-308 pages

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