Nonequilibrium inviscid flow about blunt bodies

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049 ‡aMAIN
086 0 ‡aD 301.71:63-369
100 1 ‡aLee, R. H., ‡eauthor.
245 1 0 ‡aNonequilibrium inviscid flow about blunt bodies / ‡cby R.H. Lee and S.T. Chu.
264 1 ‡aInglewood, California : ‡bSpace Systems Division, Air Force Systems Command, United States Air Force, ‡c1964.
300 ‡a54 pages : ‡billustrations ; ‡c28 cm.
336 ‡atext ‡btxt ‡2rdacontent
337 ‡aunmediated ‡bn ‡2rdamedia
338 ‡avolume ‡bnc ‡2rdacarrier
490 0 ‡aTechnical documentary report (Air Force Space Systems Division) ; ‡vSSD-TDR-63-369
500 ‡a"20 January 1964."
504 ‡aIncludes bibliographic references (pages 53-54).
520 ‡aAn inverse method was used for analyzing the chemically nonequilibrium flow about a blunt body. This method starts with an assumed form of shock shape. The flow field and the thermodynamics behind the shock is determined by a finite difference mesh scheme. The calculation is continued until the sonic point on the body is exceeded. Mass flow rate is integrated along the curvilinear coordinate normal to the shock to determine locations and shapes of the body and the streamlines. The analysis assumes air to be a five-component reacting gas undergoing six coupled reactions with negligible ionization. Complete rate equations including three-body recombinations are used. Numerical examples are given for frozen and nonequilibrium air flows. Three different kinetic models are used for the reacting cases. The results show that even though the pressure and velocities in the shock layer are not sensitive to the air kinetics, the other thermodynamic properties are significantly influenced by the kinetic models chosen. The nitric oxide concentration is greatly enhanced by its direct formation from molecular oxygen and nitrogen. The extra amount of nitric oxide may cause an appreciable increase in gas cap radiation at high altitudes and superorbital velocities. (Author).
536 ‡aReport prepared by Aerospace Corporation, Systems Research and Planning Division, El Segundo, California, for Commander Space Systems Division, United States Air Force, under contract No. ‡bAF 04(695)-269.
538 ‡aMode of access: Internet.
650 0 ‡aSpace vehicles ‡xAtmospheric entry.
650 0 ‡aAxial flow.
650 0 ‡aAerodynamics, Hypersonic.
700 1 ‡aChu, S. T., ‡eauthor.
710 1 ‡aUnited States. ‡bAir Force. ‡bSystems Command. ‡bSpace Systems Division, ‡eissuing body.
710 2 ‡aAerospace Corporation, ‡esponsor.
730 0 ‡aTechnical Report Archive & Image Library (TRAIL)
899 ‡a39015104979474
CID ‡a102893132
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