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Fan Modelling in CFD Using RANS with MRF, Limitations and Consistency, a Comparison between Fans of Different Design

Peter Gullberg (Institutionen för tillämpad mekanik, Fordonsteknik och autonoma system) ; Lennart Löfdahl (Institutionen för tillämpad mekanik, Fordonsteknik och autonoma system)
Institution of Mechanical Engineers - VTMS 10, Vehicle Thermal Management Systems Conference and Exhibition p. 423-433. (2011)
[Konferensbidrag, refereegranskat]

This paper will present a comparison between measured and CFD simulated fan performance characteristics of three different types of heavy duty truck fans. The test bench incorporates a fan, fan ring, shroud and 3D engine blockage. The latter creates a severe constraint to the use of simplified 3D CFD fan models (MRF-model). The results illustrates that the MRF methodology is consistent with test data for axial flow conditions up to fan transition, i.e. this methodology could be used for applications with a correctly installed axial fan. However after fan transition the methodology is not consistent any more.



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Denna post skapades 2011-06-08. Senast ändrad 2011-08-25.
CPL Pubid: 141415

 

Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Fordonsteknik och autonoma system (2010-2017)

Ämnesområden

Energi
Transport
Farkostteknik
Strömningsmekanik

Chalmers infrastruktur

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