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Large-eddy simulation of a turbulent mixing layer
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Mansour, N. N. Ferziger, J. H. Reynolds, W. C. |
| Copyright Year | 1978 |
| Description | The three dimensional, time dependent (incompressible) vorticity equations were used to simulate numerically the decay of isotropic box turbulence and time developing mixing layers. The vorticity equations were spatially filtered to define the large scale turbulence field, and the subgrid scale turbulence was modeled. A general method was developed to show numerical conservation of momentum, vorticity, and energy. The terms that arise from filtering the equations were treated (for both periodic boundary conditions and no stress boundary conditions) in a fast and accurate way by using fast Fourier transforms. Use of vorticity as the principal variable is shown to produce results equivalent to those obtained by use of the primitive variable equations. |
| File Size | 23827172 |
| Page Count | 211 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780014084 |
| Archival Resource Key | ark:/13960/t3227q70d |
| Language | English |
| Publisher Date | 1978-04-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Turbulent Flow Energy Conservation Mixing Length Flow Theory Turbulent Boundary Layer Vorticity Equations Isotropic Turbulence Computerized Simulation Spatial Filtering Equations of Motion Eddy Viscosity Mixing Layers Fluids Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
