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首页> 美国政府科技报告 >Aerodynamic Heating Measurements on Hypersonic Flight Exoerunebt (HYFLEX) Vehicle.
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Aerodynamic Heating Measurements on Hypersonic Flight Exoerunebt (HYFLEX) Vehicle.

机译：高超声速飞行Exoerunebt（HYFLEX）车辆的气动加热测量。

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摘要

Aerodynamic heating on the Hypersonic Flight Experiment vehicle was measured using newly developed sensors, calibrated by lamp heating tests. These sensors were shown to be of sue for flight measurement purposes. The results of the aerodynamic heating measurements on the vehicle were compared with predictions based on cold hypersonic wind tunnel tests and CFD calculations. The flight results on the nose cap were lower than the predictions based on the wind tunnel tests in the stagnation region of around t - 100sec. Comparison with real gas CFD results assuming a fully catalytic wall and non-catalytic wall indicate that this discrepancy is due to the effect of dissociation of the air, and can be explained by the dependence of catalycity on surface temperature. For the measurements on the elevon, an increase in aerodynamic heating caused by boundary layer transition was observed immediately prior to it being observed on the windward fuselage.

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