Title: Virtual design of efficient twin-screw superchargers for sustainable power management in engines

Authors: H. Li, J.Y. Tu, A. Subic

Addresses: School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, P.O. Box 71, Bundoora, Vic 3083, Australia. ' School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, P.O. Box 71, Bundoora, Vic 3083, Australia. ' School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, P.O. Box 71, Bundoora, Vic 3083, Australia

Abstract: The concept of sustainability has gained increased importance in recent years as the planet|s living systems have declined and many of its vital resources depleted. Vehicle design is changing to reflect this paradigm shift, and motor vehicles are required to meet severe requirements for fuel consumption and exhaust gas. To meet these requirements, motor engines equipped with superchargers are being introduced to the market. In this study, a CFD approach to predict the leakage flow in twin-screw superchargers is described. It allows creating an integrated CAD/CFD design environment, which can address aspects of fluid and geometry requirements for the future designs.

Keywords: sustainability; twin-screw superchargers; leakage flow; computational fluid dynamics; CFD; optimisation; symmetric profile; asymmetric profile; virtual design; sustainable power management; vehicle design; motor engines; CAD; computer-aided design.

DOI: 10.1504/IJVD.2008.017184

International Journal of Vehicle Design, 2008 Vol.46 No.2, pp.219 - 236

Published online: 17 Feb 2008 *

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