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Large eddy simulation of a film cooling flow injected from an inclined discrete cylindrical hole into a crossflow with zero-pressure gradient turbulent boundary layer
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Shyam, Vikram Johnson, Perry L. |
| Copyright Year | 2012 |
| Description | A Large Eddy Simulation (LES) is performed of a high blowing ratio (M = 1.7) film cooling flow with density ratio of unity. Mean results are compared with experimental data to show the degree of fidelity achieved in the simulation. While the trends in the LES prediction are a noticeable improvement over Reynolds-Averaged Navier-Stokes (RANS) predictions, there is still a lack a spreading on the underside of the lifted jet. This is likely due to the inability of the LES to capture the full range of influential eddies on the underside of the jet due to their smaller structure. The unsteady structures in the turbulent coolant jet are also explored and related to turbulent mixing characteristics |
| File Size | 2255202 |
| Page Count | 29 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120013870 |
| Archival Resource Key | ark:/13960/t2k69gc2s |
| Language | English |
| Publisher Date | 2012-08-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Thermodynamics Large Eddy Simulation Vortices Turbulent Boundary Layer Reynolds Averaging Blowing Film Cooling Turbulent Mixing Cross Flow Pressure Gradients 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 |
