HSTDV Nozzle Contour Optimization for Enhanced Force Characteristics – Phase I

Verma, SB and Manisankar, C (2009) HSTDV Nozzle Contour Optimization for Enhanced Force Characteristics – Phase I. Project Report. National Aerospace Laboratories, Bangalore.

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    Abstract

    The SERN shape for the DRDL HSTDV program is a straight 2-D ramp (18 deg angle). It is known that a higher nozzle exit angle introduces divergence losses which can be reduced by properly contouring the nozzle so as to keep the nozzle exit angle as small as possible. Different nozzle design contour approaches were adopted. The force characteristics evaluated for each of these contours showed the 18 degree ramp to be better. The thrust optimized contour however resulted in a slight increase in CT relative to the 18degree ramp. But the CN value dropped significantly for this case.

    Item Type: Proj.Doc/Technical Report (Project Report)
    Uncontrolled Keywords: HSTDV, SERN, Contour optimization, Parabolic nozzle
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Experimental Aerodynamics Division, Experimental Aerodynamics Division
    Depositing User: Smt Bhagya Rekha KA
    Date Deposited: 14 Nov 2011 10:10
    Last Modified: 14 Nov 2011 10:10
    URI: http://nal-ir.nal.res.in/id/eprint/10025

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