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Investigation of Flow Around Simple Bodies in Hypersonic Flow


Kubota, Toshi (1957) Investigation of Flow Around Simple Bodies in Hypersonic Flow. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/ZVPP-FK96.


NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. A theoretical analysis of the flow around slender blunt-nosed bodies was made by applying the flow similarity concept to the hypersonic small-disturbance equations. The flow field around a class of bodies of the form [...] exhibits a certain similarity in the sense that the pressure, density and transverse velocity are described by relations of the form Q(x,r)/Q(R) = f(r/R), where R is the distance from the axis to the shock wave. This similarity holds when the Mach number is infinitely large, and when the exponent in the equation defining the body shape lies in the range [...] for axially-symmetric bodies and in the range [...] for two-dimensional bodies. For large but finite Mach numbers a second approximation was obtained by expanding solutions in series of powers of [...]. An experimental investigation of the flow around "similar-flow" bodies of revolution was conducted at Mach number 7.7 in the GALCIT hypersonic wind tunnel. The surface pressure distributions agreed closely with the theoretical predictions, after a simplified correction was made for the boundary-layer displacement effect. The results indicated that the boundary layer interaction effect needs a further investigation.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:(Aeronautics and Mathematics)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Minor Option:Mathematics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Lees, Lester
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1957
Additional Information:Title varies in 1957 Caltech commencement program: Study of Flow Around Simple Bodies at Hypersonic Speed
Record Number:CaltechETD:etd-07142004-143403
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2880
Deposited By: Imported from ETD-db
Deposited On:16 Jul 2004
Last Modified:16 Aug 2023 21:27

Thesis Files

PDF (Kubota_t_1957.pdf) - Final Version
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