Ground Test and Computation of Boundary Layer Transition on the Hypersonic International Flight Research and Experimentation (HIFiRE)-5 Vehicle

Abstract

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Windspeed and Flow Angle Measurement by Tracking of a Laser-Induced Breakdown Spark

“…Similarly, errors in  1 and  2 produce offsets in both in V X and V Y that are related through Eqs. (3), (4), and (6).…”

“…[1][2][3]. To facilitate these development programs, hypersonic test programs [4][5][6] are being conducted to enhance understanding of high-speed flows so as to enable improved prediction and design capabilities. This kind of fluid-mechanic understanding cannot be obtained from ground-test and computational fluid dynamics (CFD) efforts alone, since ground-test facilities are not capable of achieving all points in the flight envelope of realistic flightvehicle designs, while CFD simulations require validation data.…”