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A multiple-scale turbulence model for incompressible flow
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Duncan, B. S. Shih, T. H. Liou, W. W. |
| Copyright Year | 1993 |
| Description | A multiple-scale eddy viscosity model is described. This model splits the energy spectrum into a high wave number regime and a low wave number regime. Dividing the energy spectrum into multiple regimes simplistically emulates the cascade of energy through the turbulence spectrum. The constraints on the model coefficients are determined by examining decaying turbulence and homogeneous turbulence. A direct link between the partitioned energies and the energy transfer process is established through the coefficients. This new model was calibrated and tested for boundary-free turbulent shear flows. Calculations of mean and turbulent properties show good agreement with experimental data for two mixing layers, a plane jet and a round jet. |
| File Size | 729144 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940008912 |
| Archival Resource Key | ark:/13960/t7tn24p7g |
| Language | English |
| Publisher Date | 1993-01-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Incompressible Flow Cascade Flow Turbulent Flow Jet Flow Energy Spectra Turbulence Models Shear Flow Energy Transfer Eddy Viscosity Mixing Layers Fluids Homogeneous Turbulence Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
