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CFD Based Design for Automotive Engine Cooling Fan Systems
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 23, 1998 by SAE International in United States
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Cutting down fan system development costs, improving quality, and increasing fan efficiency is a challenge that is now being addressed by the engine cooling engineers. In order to attain such a compelling goal, a Virtual Prototyping approach has been adopted, mainly based on Computational Fluid Dynamics (CFD).
For the development of the fans used in the engine cooling systems, CFD now plays a key role as a design tool as well as an optimization tool. Until recently, both complex geometries and low-speed aerodynamics inherent to latter systems have prevented numerical simulations to be part of the design or reblading processes. Since the advent of general purpose CFD softwares capable of adressing the issues pertinent to the engine cooling system fans, a CFD based development of a new standard fan range was initiated. This paper presents the CFD strategy adopted and the results obtained on the new fans.
Both development and re-blading of fan systems have been addressed, leading to more compact and efficient fans. Re-blading an existing fan led to a fan with 80% hydraulic efficiency. A new large diameter fan has been designed exhibiting similar performances. Comparisons between numerical results and experimental data exhibited good qualitative agreement, emphasizing the key role of CFD as a reliable tool in the design process.
CitationCoggiola, É., Dessale, B., Moreau, S., Broberg, R. et al., "CFD Based Design for Automotive Engine Cooling Fan Systems," SAE Technical Paper 980427, 1998, https://doi.org/10.4271/980427.
- Bakir F. Noguera R Rey R. Dimensionnement des turbomachines ENSAM Paris 1996
- Brandt A. McCormick S. Ruge J. Algebraic Multigrid for Sparse Matrix Equations Cambridge University Press 1984
- Cebecci T. Smith A. M. O. Analysis of turbulent boundary layers Academic Press New York 1984
- Advanced Scientific Computing TASCflow User's Guide ASC Ltd 1996
- Lakshminnarayana Bugudur Fluid Dynamics and Heat Ransfer of Turbomachinery Jon Wiley & Soncs, Inc. 1996
- Launder B.E. Spalding D.B. The numerical computation of turbulent flows Comp. Meth. Appl. Mech. Eng. 3 269 289 1974
- Moreau S. Bennett E. Improvement of fan design using CFD SAE 97 Detroit February 1997
- Moreau S. Raible T. Improved numerical noise predictions for axial fans VTMS 97 Indianapolis May 1997
- Raithby G. D. Galpin P. F. The practical application of computational fluid mechanics Canadian Congress of Applied Mechanics (CANCAM) Winnipeg June 1991