Abstract
This paper presents results from an explanatory two-year effort of applying Computational Fluid Dynamics (CFD) to analyze the empty-tunnel flow in the NASA Langley Research Center Transonic Dynamics Tunnel (TDT). The TDT is a continuous-flow, closed circuit, 16- x 16-foot slotted-test-section wind tunnel, with capabilities to use air or heavy gas as a working fluid. In this study, experimental data acquired in the empty tunnel using the R-134a test medium was used to calibrate the computational data. The experimental calibration data includes wall pressures, boundary-layer profiles, and the tunnel centerline Mach number profiles. Subsonic and supersonic flow regimes were considered, focusing on Mach 0.5, 0.7 and Mach 1.1 in the TDT test section. This study discusses the computational domain, boundary conditions, and initial conditions selected in the resulting steady-state analyses using NASA's FUN3D CFD software.
Original language | American English |
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Number of pages | 17 |
DOIs | |
State | Published - 2016 |
Event | AIAA SciTech: 54th AIAA Aerospace Sciences Meeting - San Diego, California Duration: 4 Jan 2016 → 8 Jan 2016 |
Conference
Conference | AIAA SciTech: 54th AIAA Aerospace Sciences Meeting |
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City | San Diego, California |
Period | 4/01/16 → 8/01/16 |
NREL Publication Number
- NREL/CP-5000-67891
Keywords
- CFD
- computational fluid dynamics
- empty-tunnel flow
- flow regimes
- steady-state analysis