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Improvement of Fan Design Using CFD
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English
Abstract
The market needs for quieter and more compact engine cooling modules have led Valeo to develop a complete simulation based design (SBD) for its future fan technology. Its purpose is not only to improve the performances of the existing range, but also to reduce the design times significantly, and therefore to cut down the development costs.
The current SBD involves using state-of-the-art CFD as a backbone. From an initial guess for a given design point based on a ducted flow approach, 2D blade cascade Navier-Stokes computations are performed to improve and optimize the initial profile. 3D Navier-Stokes computations are then performed to get the final stacking that will match the objective performances. All computations presented here have been achieved with TASCflow by ASC.
Validation calculations and first designs using the SBD are presented here: besides achieving the design conditions with a 15% decrease in axial packaging as targeted, up to 15% improvement in fan efficiency have already been obtained and up to 4 dBA noise reduction have been measured on the new fans.
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Citation
Moreau, S. and Bennett, E., "Improvement of Fan Design Using CFD," SAE Technical Paper 970934, 1997, https://doi.org/10.4271/970934.Also In
References
- “Dimensionnement des Turbomachines,” Rey R. Cours ENSAM 1996
- “Dimensionnement et Analyse des Performances des machines Centrifuges et Helico-Centrifuges,” Rey R. SERAM report 1995
- NACA profiles software and documentation 1996
- “Theory of Wings,” Ed. Dover 1956
- “Numerical Experiments on the Flow past a Circular Cylinder at Sub-Critical Reynolds Number,” Beaudan P. Moin P. PhD dissertation Stanford University 1994
- “Boundary Layer Theory,” Schlichting H. Ed. McGraw-Hill 1987
- “Analysis of Turbulent Boundary Layers,” Cebecci T. Smith A.M.O. Ed. Academic Press Inc. New York 1974
- “ TASCflow : user guide (volumes 1-7),” ASC 1996
- “ ICEM/Powermesh : user guide (volumes 1-3),” ASC 1996
- NACA report 1565 1956