Loading...
Please wait, while we are loading the content...
Similar Documents
Multiple-scale turbulence modeling of boundary layer flows for scramjet applications
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Fabris, G. Edelman, R. B. Harsha, P. T. |
| Copyright Year | 1981 |
| Description | As part of an investigation into the application of turbulence models to the computation of flows in advanced scramjet combustors, the multiple-scale turbulence model was applied to a variety of flowfield predictions. The model appears to have a potential for improved predictions in a variety of areas relevant to combustor problems. This potential exists because of the partition of the turbulence energy spectrum that is the major feature of the model and which allows the turbulence energy dissipation rate to be out of phase with turbulent energy production. The computations were made using a consistent method of generating experimentally unavailable initial conditions. An appreciable overall improvement in the generality of the predictions is observed, as compared to those of the basic two-equation turbulence model. A Mach number-related correction is found to be necessary to satisfactorily predict the spreading rate of the supersonic jet and mixing layer. |
| File Size | 4395436 |
| Page Count | 75 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810014878 |
| Archival Resource Key | ark:/13960/t9382601p |
| Language | English |
| Publisher Date | 1981-05-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Ramjet Engines Compressibility Effects Turbulent Flow Supersonic Combustion Turbulence Models Shear Flow Boundary Layer Transition Models Mixing Layers Fluids Turbulent Mixing 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 |
