An evaluation of Shuttle Entry Air Data System (SEADS) flight pressures - Comparisons with wind tunnel and theoretical predictionsThe SEADS pressure data obtained from the Shuttle flight 61-C are analyzed in conjunction with the preflight database. Based on wind tunnel data, the sensitivity of the Shuttle Orbiter stagnation region pressure distribution to angle of attack and Mach number is demonstrated. Comparisons are made between flight and wind tunnel SEADS orifice pressure distributions at several points throughout the re-entry. It is concluded that modified Newtonian theory provides a good tool for the design of a flush air data system, furnishing data for determining orifice locations and transducer sizing. Ground-based wind tunnel facilities are capable of providing the correction factors necessary for the derivation of accurate air data parameters from pressure data.
Document ID
19930057203
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Henry, M. W. (NASA Langley Research Center Hampton, VA, United States)
Wolf, H. (Analytical Mechanics Associates, Inc. Hampton, VA, United States)
Siemers, Paul M., III (NASA Langley Research Center Hampton, VA, United States)