Simulation Of Real Gas Effects On Pressure Distributions For Aeroassist Flight Experiment Vehicle And Comparison With Prediction

Author : National Aeronautics and Space Administration (NASA)
Publisher :
ISBN 13 : 9781722768720
Total Pages : 44 pages
Book Rating : 4.7/5 (687 download)

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Download or read book Simulation of Real-Gas Effects on Pressure Distributions for Aeroassist Flight Experiment Vehicle and Comparison with Prediction written by National Aeronautics and Space Administration (NASA) and published by . This book was released on 2018-08-20 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pressure distributions measured on a 60 degree half-angle elliptic cone, raked off at an angle of 73 degrees from the cone centerline and having an ellipsoid nose (ellipticity equal to 2.0 in the symmetry plane) are presented for angles of attack from -10 degrees to 10 degrees. The high normal shock density ratio aspect of a real gas was simulated by testing in Mach 6 air and CF sub 4 (density ratio equal to 5.25 and 12.0, respectively). The effects of Reynolds number, angle of attack, and normal shock density ratio on these measurements are examined, and comparisons with a three dimensional Euler code known as HALIS are made. A significant effect of density ratio on pressure distributions on the cone section of the configuration was observed; the magnitude of this effect decreased with increasing angle of attack. The effect of Reynolds number on pressure distributions was negligible for forebody pressure distributions, but a measurable effect was noted on base pressures. In general, the HALIS code accurately predicted the measured pressure distributions in air and CF sub 4. Micol, John R. Langley Research Center RTOP 506-40-41-01...