A series of Hyper-X Mach 10 flowpath ground tests are underway to obtain engine performance and operation data and to confirm and refine the flowpath design methods. The model used is a full-scale height, partial-width replica of the Hyper-X Research Vehicle propulsive flowpath with truncated forebody and aftbody. This is the fifth test entry for this model in the NASA-HYPULSE facility at GASL. For this entry the facility nozzle and model forebody were modified to better simulate the engine inflow conditions at the target flight conditions. The forebody was modified to be a wide flat plate with no flow fences, the facility nozzle Mach number was increased, and the model was positioned to be tested in a semi-direct-connect arrangement. This paper presents a review of the test conditions, model calibrations, and a description of steady flow confirmation. The test series included runs using hydrogen fuel, and a silane-in-hydrogen fuel mixture. Other test parameters included the model mounting angle (relative to the tunnel flow), and the test gas oxygen fraction to account for the presence of (NO) in the test gas at the M10 conditions.
Hyper-X Mach 10 Engine Flowpath Development: Fifth Entry Test Conditions and Methodology
2001
9 pages
Report
Keine Angabe
Englisch
Aircraft , Calibrating , Flight conditions , Ground tests , Hypersonic speed , Mach number , Proving , Research vehicles , Afterbodies , Flat plates , Forebodies , Hydrogen fuels , Mounting , Oxygen , Refining , Replicas , Silanes , Steady flow , Targets
AIAA-2005-1025 SCRAMJET ENGINE FLOWPATH DEVELOPMENT FOR THE HYPER-X MACH 10 FLIGHT TEST
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