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Supersonic flow simulation for a boat-tailed heat shield

Published online by Cambridge University Press:  04 July 2016

Sharad C. Purohit
Sharad C. Purohit*
Affiliation:
Applied Mathematics Division, Flight Dynamics Group, Vikram Sarabhai Space Centre, Trivandrum, India
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Summary

For a 15° boat-tailed heat shield or payload shroud, the unsteady, compressible Navier-Stokes equations are numerically solved. For a Reynolds number of the order of one million and for four different freestream Mach numbers, the time integration is performed for 64 x 30 grid computational domain. The entire flow-field is analysed to delineate the gross dominant characteristics. It is observed that the flow in the boat-tail region is completely attached for Mach number 2·47 and beyond whereas it is separated for lower Mach numbers. A comparison between the numerical solutions and the available experimental results is provided and, for incipient flow separation conditions, an evaluation of unsteady surface pressure data is presented.

Type
Research Article
Information
The Aeronautical Journal , Volume 91 , Issue 904 , April 1987 , pp. 183 - 189
Copyright
Copyright © Royal Aeronautical Society 1987 

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