| contributor author | P. Andreasson | |
| contributor author | U. Svensson | |
| date accessioned | 2017-05-08T23:38:47Z | |
| date available | 2017-05-08T23:38:47Z | |
| date copyright | September, 1992 | |
| date issued | 1992 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27069#463_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/110436 | |
| description abstract | The standard eddy-viscosity concept postulates that zero velocity gradient is accompanied by zero shear stress. This is not true for many boundary layer flows: wall jets, asymmetric channel flows, countercurrent flows, for example. The generalized eddy-viscosity hypothesis presented in this paper, relaxes this limitation by recognizing the influence of gradients in the turbulent length scale and the shear. With this new eddy-viscosity concept, implemented into the standard k–ε model, predictions of some boundary layer flows are made. The modelling results agree well with measurements, where predictions with the standard eddy-viscosity concept are known to fail. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | A Note on a Generalized Eddy-Viscosity Hypothesis | |
| type | Journal Paper | |
| journal volume | 114 | |
| journal issue | 3 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.2910055 | |
| journal fristpage | 463 | |
| journal lastpage | 466 | |
| identifier eissn | 1528-901X | |
| keywords | Eddies (Fluid dynamics) | |
| keywords | Viscosity | |
| keywords | Flow (Dynamics) | |
| keywords | Shear (Mechanics) | |
| keywords | Boundary layers | |
| keywords | Gradients | |
| keywords | Channel flow | |
| keywords | Modeling | |
| keywords | Jets | |
| keywords | Measurement | |
| keywords | Turbulence AND Stress | |
| tree | Journal of Fluids Engineering:;1992:;volume( 114 ):;issue: 003 | |
| contenttype | Fulltext | |
