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Numerical investigation of plif gas seeding for hypersonic boundary layer flows
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Danehy, Paul M. Johanson, Craig T. |
| Copyright Year | 2012 |
| Description | Numerical simulations of gas-seeding strategies required for planar laser-induced fluorescence (PLIF) in a Mach 10 air flow were performed. The work was performed to understand and quantify adverse effects associated with gas seeding and to compare different flow rates and different types of seed gas. The gas was injected through a slot near the leading edge of a flat plate wedge model used in NASA Langley Research Center's 31- Inch Mach 10 Air Tunnel facility. Nitric oxide, krypton, and iodine gases were simulated at various injection rates. Simulation results showing the deflection of the velocity field for each of the cases are presented. Streamwise distributions of velocity and concentration boundary layer thicknesses as well as vertical distributions of velocity, temperature, and mass distributions are presented for each of the cases. Relative merits of the different seeding strategies are discussed. |
| File Size | 3916366 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120001391 |
| Archival Resource Key | ark:/13960/t4cp23n0q |
| Language | English |
| Publisher Date | 2012-01-09 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Thermodynamics Flat Plates Computational Fluid Dynamics Laser Induced Fluorescence Hypersonic Flow Gas Injection Krypton Space Shuttle Orbiters Computer Programs Air Flow Hypersonic Speed Simulation Nitric Oxide Wind Tunnel Tests Iodine Boundary Layer Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
