Loading...
Please wait, while we are loading the content...
Similar Documents
Radiation coupling with the fun3d unstructured-grid cfd code
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wood, William A. |
| Copyright Year | 2012 |
| Description | The HARA radiation code is fully-coupled to the FUN3D unstructured-grid CFD code for the purpose of simulating high-energy hypersonic flows. The radiation energy source terms and surface heat transfer, under the tangent slab approximation, are included within the fluid dynamic ow solver. The Fire II flight test, at the Mach-31 1643-second trajectory point, is used as a demonstration case. Comparisons are made with an existing structured-grid capability, the LAURA/HARA coupling. The radiative surface heat transfer rates from the present approach match the benchmark values within 6%. Although radiation coupling is the focus of the present work, convective surface heat transfer rates are also reported, and are seen to vary depending upon the choice of mesh connectivity and FUN3D ux reconstruction algorithm. On a tetrahedral-element mesh the convective heating matches the benchmark at the stagnation point, but under-predicts by 15% on the Fire II shoulder. Conversely, on a mixed-element mesh the convective heating over-predicts at the stagnation point by 20%, but matches the benchmark away from the stagnation region. |
| File Size | 372307 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120011737 |
| Archival Resource Key | ark:/13960/t3gx99g15 |
| Language | English |
| Publisher Date | 2012-06-25 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Thermodynamics Convective Heat Transfer Flight Tests Tangents Computational Fluid Dynamics Simulation Unstructured Grids Mathematics Radiation Sources Stagnation Point Hypersonic Flow Trajectories Heat Transfer Mach Number Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
