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Pilot Survey Of Exhaust Flow Field Of A 2 D Scramjet Nozzle At Mach 6 With Air Or Freon And Argon Used For Exhaust Simulation
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722487072 Total Pages :38 pages Book Rating :4.4/5 (87 download)
Book Synopsis Pitot Survey of Exhaust Flow Field of a 2-D Scramjet Nozzle at Mach 6 with Air Or Freon and Argon Used for Exhaust Simulation by : National Aeronautics and Space Administration (NASA)
Download or read book Pitot Survey of Exhaust Flow Field of a 2-D Scramjet Nozzle at Mach 6 with Air Or Freon and Argon Used for Exhaust Simulation written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-09 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pitot-rake survey of the simulated exhaust of a half-span scramjet nozzle model was conducted in the Langley 20-Inch Mach 6 Tunnel to provide an additional data set for computational fluid dynamics (CFD) code comparisons. A wind-tunnel model was tested with a 26-tube pitot rake that could be manually positioned along the mid-semispan plane of the model. The model configuration had an external expansion surface of 20 degrees and an internal cowl expansion of 12 degrees; tests were also performed with a flow fence. Tests were conducted at a free-stream Reynolds number of approximately 6.5 x 10(exp 6) per foot and a model angle of attack of -0.75 degrees. The two exhaust gas mediums that were tested were air and a Freon 12-argon mixture. Each medium was tested at two jet total pressures at approximately 28 and 14 psia. This document presents the flow-field survey results in graphical as well as tabular form, and several observations concerning the results are discussed. The surveys reveal the major expected flow-field characteristics for each test configuration. For a 50-percent freon 12 and 50-percent argon mixture by volume (Fr-Ar), the exhaust jet pressures were slightly higher than those for air. The addition of a flow fence slightly raised the pitot pressure for the Fr-Ar mixture, but it produced little change for air. For the Fr-Ar exhaust, the plume was larger and the region between the shock wave and plume was smaller. Monta, William J. Langley Research Center RTOP 505-59-40-03...
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Book Synopsis Pressure and Temperature Sensitive Paints by : Tianshu Liu
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Book Synopsis Scientific and Technical Aerospace Reports by :
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