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Numerical Simulation of Vitiation Effects on a Hydrogen-Fueled Dual-Mode ScramjetThe Wind-US computational fluid dynamics (CFD) flow solver was used to simulate dual-mode direct-connect ramjet/scramjet engine flowpath tests conducted in the University of Virginia (UVa) Supersonic Combustion Facility (SCF). The objective was to develop a computational capability within Wind-US to aid current hypersonic research and provide insight to flow as well as chemistry details that are not resolved by instruments available. Computational results are compared with experimental data to validate the accuracy of the numerical modeling. These results include two fuel-off non-reacting and eight fuel-on reacting cases with different equivalence ratios, split between one set with a clean (non-vitiated) air supply and the other set with a vitiated air supply (12 percent H2O vapor). The Peters and Rogg hydrogen-air chemical kinetics model was selected for the scramjet simulations. A limited sensitivity study was done to investigate the choice of turbulence model and inviscid flux scheme and led to the selection of the k-epsilon model and Harten, Lax and van Leer (for contact waves) (HLLC) scheme for general use. Simulation results show reasonably good agreement with experimental data and the overall vitiation effects were captured.
Document ID
20100029603
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Vyas, Manan A. (NASA Glenn Research Center Cleveland, OH, United States)
Engblom, William A. (Embry-Riddle Aeronautical Univ. Daytona Beach, FL, United States)
Georgiadis, Nicholas J. (NASA Glenn Research Center Cleveland, OH, United States)
Trefny, Charles J. (NASA Glenn Research Center Cleveland, OH, United States)
Bhagwandin, Vishal A. (Army Research Lab. Aberdeen Proving Ground, MD, United States)
Date Acquired
August 25, 2013
Publication Date
July 1, 2010
Subject Category
Aerodynamics
Report/Patent Number
AIAA Paper 2010-1127
E-17332
NASA/TM-2010-216756
Meeting Information
Meeting: 48th Aerospace Sciences Meeting
Location: Orlando, FL
Country: United States
Start Date: January 4, 2010
End Date: January 7, 2010
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
WBS: WBS 031102.02.030738.09
Distribution Limits
Public
Copyright
Public Use Permitted.

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