The effects of design parameters and local flow fields on the performance of hyperflo supersonic parachutes and high dynamic pressure parachute concepts

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049 ‡aMAIN
086 0 ‡aD 301.45/46-2:65-150 Volume 1
100 1 ‡aSims, Leland W., ‡eauthor.
245 1 4 ‡aThe effects of design parameters and local flow fields on the performance of hyperflo supersonic parachutes and high dynamic pressure parachute concepts / ‡cLeland W. Sims.
264 1 ‡aWright-Patterson Air Force Base, Ohio : ‡bAir Force Flight Dynamics Laboratory, Research and Technology Division, Air Force Systems Command, United States Air Force, ‡c1965.
300 ‡axvi, 195 pages : ‡billustrations ; ‡c28 cm.
336 ‡atext ‡btxt ‡2rdacontent
337 ‡aunmediated ‡bn ‡2rdamedia
338 ‡avolume ‡bnc ‡2rdacarrier
490 0 ‡aAir Force Flight Dynamics Laboratory (U.S.). Technical report ; ‡vAFFDL TR 65-150 Volume 1
500 ‡a"October 1965."
504 ‡aIncludes bibliographical references (pages 194-195).
520 ‡aWake flow field surveys were conducted in the wind tunnel behind several side strut mounted forebodies in the Mach number range from 2 to 5. Studies of the effects of design parameters on Hyperflo supersonic parachutes, and of high dynamic pressure parachute configurations deployed in such wakes were performed. Wake pressure distributions indicated an asymmetry due to the forebody support structure, and a disturbance to the flow field which emanates from the support structure. The latter was most pronounced at Mach numbers above 3. Modification to the wake caused by an air bleed into the forebody base was also indicated. Normal, but higher than predicted axial wake Mach number distributions were found to exist in the forebody wakes. Hyperflo tests at Mach numbers 5 to 5.5 showed abnormally large parachute oscillations with models located at large downstream positions aft of the forebodies. The effects of Hyperflo design parameters and forebody type on model performance are only qualitatively indicated by the tests conducted. (Author).
536 ‡aReport was prepared by Cook Electric Company, Tech-Center Division, Morton Grove, Illinois, under Air Force contract no. ‡bAF33(615)-1857.
538 ‡aMode of access: Internet.
650 0 ‡aSupersonic planes
650 0 ‡aAircraft survival equipment.
650 0 ‡aParachutes ‡xDesign and construction.
710 2 ‡aAir Force Flight Dynamics Laboratory (U.S.), ‡esponsor.
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