Comparison of Various Turbulence Models in Rotating Machinery Blade-to-Blade Passages

International Journal of Rotating Machinery

S. T. Tan¹  E. Y. K. Ng² 

[1] FerroTec Cooperation (S) Pte Ltd, Kallang Basin Industry Estate, Kallang Ave., Singapore 639798, Singapore;School of Mechanical and Production Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore;

关键词: Turbulent;    CFD;    Turbomachinery.;   

DOI  :  10.1155/S1023621X0000035X

来源: DOAJ

【 摘 要 】

Numerical calculations on four blade passages are done using Q3D Navier-Stokes solver with a simple mixing length turbulence model and two more advanced transport-equation approaches. Mixing length is simple and cheap but crude, while more sophisticated transport approaches are more physical but more expensive. Predicted results using different turbulent models are discussed and compared with the laminar flow and well documented experimental results. Studies show that the model with more transport-equation predicts improved result as it includes the effects of upstream history into the velocity scale.

【 授权许可】

Unknown