Abstract
The objective of the present work is twofold, first is
to validate the methodology of calculating aerodynamics
performances of high speed vehicle using CFD software Fluent,
and secondly to study the aerodynamic characteristics of
different symmetric re-entry vehicles. Aerodynamic
performances of symmetric re-entry vehicles with different
configurations and orientations are computed. Focus is made on
effects of nose-bluntness ratio on aerodynamic performances
for re-entry vehicle. Static aerodynamic coefficients (angles of
attack of 00
to 200
) for spherically blunted cones having
different cone half-angle and nose bluntness ratio are calculated
using CFD. Comparisons between present numerical and
available experimental results were made and found in good
agreement. Measured numerical results validate the
methodology to calculate aerodynamic performance of re-entry
vehicle and confirm that the effects of nose-bluntness ratio are
small for the large half cone angle configurations as compared
to small half cone angle configurations.
Sheikh Arslan Ali, Dr. Mukkarum Husain, Dr. M. Nauman Qureshi. (2012) Effects of Nose-Bluntness Ratio on Aerodynamic Performance for Re-entry Vehicle, Journal of Space Technology , Volume 2, Issue 1.
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