contributor author | Chitta, Varun | |
contributor author | Dhakal, Tej P. | |
contributor author | Keith Walters, D. | |
date accessioned | 2017-05-09T01:18:48Z | |
date available | 2017-05-09T01:18:48Z | |
date issued | 2015 | |
identifier issn | 0098-2202 | |
identifier other | fe_137_03_031207.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/158214 | |
description abstract | A new scalar eddyviscosity turbulence model is proposed, designed to exhibit physically correct responses to flow transition, streamline curvature, and system rotation effects. The eddyviscosity model (EVM) developed herein is based on the k–د‰ framework and employs four transport equations. The transport equation for a structural variable (v2) from a curvaturesensitive Shear Stress Transport (SST) k–د‰â€“v2 model, analogous to the transverse turbulent velocity scale, is added to the threeequation transitionsensitive k–kL–د‰ model. The physical effects of rotation and curvature (RC) enter the model through the added transport equation. The new model is implemented into a commercial computational fluid dynamics (CFD) solver and is tested on a number of flow problems involving flow transition and streamline curvature effects. The results obtained from the test cases presented here are compared with available experimental data and several other ReynoldsAveraged NavierStokes (RANS) based turbulence models. For the cases tested, the new model successfully resolves both flow transition and streamline curvature effects with reasonable engineering accuracy, for only a small increase in computational cost. The results suggest that the model has potential as a practical tool for the prediction of flow transition and curvature effects over blunt bodies. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Sensitization of a Transition Sensitive Linear Eddy Viscosity Model to Rotation and Curvature Effects | |
type | Journal Paper | |
journal volume | 137 | |
journal issue | 3 | |
journal title | Journal of Fluids Engineering | |
identifier doi | 10.1115/1.4028627 | |
journal fristpage | 31207 | |
journal lastpage | 31207 | |
identifier eissn | 1528-901X | |
tree | Journal of Fluids Engineering:;2015:;volume( 137 ):;issue: 003 | |
contenttype | Fulltext | |