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Turbulence modeling (Document No: 19920014095)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Shih, Tsan-Hsing |
| Copyright Year | 1991 |
| Description | The performance of existing two-equation eddy viscosity models was examined. An effort was made to develop better models for near-wall turbulence using direct numerical simulations of plane channel and boundary layer flows. The asymptotic near-wall behavior of turbulence was used to examine the problems of current second order closure models and develop new models with the correct near-wall behavior. Rapid Distortion Theory was used to analytically study the effects of mean deformation on turbulence, obtain analytical solutions for the spectrum tensor, Reynolds stress tensor, anisotropy tensor and its invariants, which can be used in the turbulence model development. The potential of the renormalization group theory in turbulence modeling was studied, as well as compressible turbulent flows, and modeling of bypass transition. |
| File Size | 274795 |
| Page Count | 5 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920014095 |
| Archival Resource Key | ark:/13960/t8tb61b3h |
| Language | English |
| Publisher Date | 1991-10-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Stress Tensors Turbulence Turbulent Flow Deformation Computational Fluid Dynamics Group Theory Distortion Spectra Asymptotic Methods Eddy Viscosity Reynolds Stress Tensors Turbulence Models Channel Flow Bypasses Walls 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 | Technical Report |
