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Low reynolds number two-equation modeling of turbulent flows
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Michelassi, V. Shih, T.-H. |
| Copyright Year | 1991 |
| Description | A k-epsilon model that accounts for viscous and wall effects is presented. The proposed formulation does not contain the local wall distance thereby making very simple the application to complex geometries. The formulation is based on an existing k-epsilon model that proved to fit very well with the results of direct numerical simulation. The new form is compared with nine different two-equation models and with direct numerical simulation for a fully developed channel flow at Re = 3300. The simple flow configuration allows a comparison free from numerical inaccuracies. The computed results prove that few of the considered forms exhibit a satisfactory agreement with the channel flow data. The model shows an improvement with respect to the existing formulations. |
| File Size | 1022818 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910014103 |
| Archival Resource Key | ark:/13960/t6c29t06s |
| Language | English |
| Publisher Date | 1991-05-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Low Reynolds Number Navier-stokes Equation Reynolds Stress Turbulent Flow Wall Flow Boussinesq Approximation K-epsilon Turbulence Model Computerized Simulation Channel Flow Viscous Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
