The first Japanese Orbital Re-entry Experiment (OREX) that successfully flew was launched by the first flight of an H-II rocket on February 4, 1994, and was inserted into a circular orbit at about 450km. NAL took charge of the pressure measurement, as one of various measurement missions, from vacuum at high altitude down to an altitude of about 75km with a four-decade precision capacitive-type pressure transducer. These data can be used to predict the surface pressure and the ambient pressure in similar flights in the future. The data verified the real gas Computational Fluid Dynamics (CFD) codes through comparison with aerodynamic calculation results. This paper outlines the design, fabrication, performance tests, environmental tests, flight operation, flight data and their evaluation of high altitude pressure measurement systems.
High-Altitude Pressure Measurement in the Orbital Re-Entry Experiment (OREX)
1996
24 pages
Report
No indication
English
Unmanned Spacecraft , Spacecraft Trajectories & Flight Mechanics , Aerodynamics , Reentry vehicles , Aerothermodynamics , Rarefield gas dynamics , Pressure measurement , High altitude pressure , Pressure sensors , Reentry physics , Flight characteristics , Rarefield gases , Computational fluid dynamics , Performance tests , Japanese spacecraft , Aerospace vehicles , Foreign technology , OREX(Orbital Reentry Experiment) , HOPE(H-II Orbiting Plane)
High altitude pressure in the orbital reentry experiment (OREX)
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