A rotation/curvature correction for turbulence models for applied CFD

作者：Arolla Sunil K^*; Durbin Paul A

来源：Progress in Computational Fluid Dynamics, 2014, 14(6): 341-351.

DOI：10.1504/pcfd.2014.065472

• Eddy viscosity
• frame rotation
• streamline curvature
• material derivative
• strain rate tensor
• circulation control
• tip leakage vortex
• applied CFD

Scalar eddy viscosity models are the workhorses of industrial CFD. But they are insensitive to the effects of frame rotation and streamline curvature. To enhance the utility of these models in the design process, it is necessary to sensitise them with a rotation/curvature correction. In this paper, we present a unified model for rotation/curvature effects and discuss its applicability for two practically relevant flow configurations. Mean flow characteristics obtained through RANS computations are compared with LES data or experiments. The improvements obtained in using the rotation/curvature correction are highlighted.

• 出版日期2014