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Supersonic boundary-layer flow turbulence modeling
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wang, Chi-Rong |
| Copyright Year | 1993 |
| Description | Baldwin-Lomax and kappa-epsilon turbulence models were modified for use in Navier-Stokes numerical computations of Mach 2.9 supersonic turbulent boundary layer flows along compression ramps. The computational results of Reynolds shear stress profiles were compared with experimental data. The Baldwin-Lomax model was modified to account for the Reynolds shear stress amplification within the flow field. A hybrid kappa-epsilon model with viscous sublayer turbulence treatment was constructed to predict the Reynolds shear stress profiles within the entire flow field. These modified turbulence models were effective for the computations of the surface pressure and the skin friction factor variations along an 8 deg ramp surface. The hybrid kappa-epsilon model could improve the predictions of the Reynolds shear stress profile and the skin friction factor near the corner of a 16 deg ramp. |
| File Size | 606415 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930005569 |
| Archival Resource Key | ark:/13960/t24b80h56 |
| Language | English |
| Publisher Date | 1993-03-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Supersonic Flow Computational Fluid Dynamics Skin Friction Turbulent Boundary Layer Friction Factor Pressure Eddy Viscosity Navier-stokes Equation Reynolds Stress Stress Distribution Flow Distribution Shear Stress K-epsilon Turbulence Model Boundary Layer Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
