Wind tunnel tests on 1:50 scale GSLV Mk II configuration

Nitin, Khamesra and Srinivasan, N (2009) Wind tunnel tests on 1:50 scale GSLV Mk II configuration. Technical Report. National Aerospace Laboratories, Bangalore, India.

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Abstract

Wind tunnel tests were cdrried out on RSS scale GSLV Mk II configuration and its variant to 1 determine the basic aerodynamic characteristics of the configuration in the transonic regime through Mach sweep tests. Mach sweep tests were conducted on two heat shield variants namely 3.4m HS-FO1 and 4m HS-D3 at angle of incidence of -4", 0" and 4" for model roll 1 orientation of 0". With 4m HS-03 heat shield configuration, tests were carried out for model / roll of O', -22.5". -45" and -67.5"at M = 1.2, 1.5 and 1.8 To ascertain the repeatability of the data, a few confirmatory tests were carried out with 4m HS-D3 GSLV Mkll configuration at M = 0.8, 1.2 and 1.8 for model roll orientation of 0". The tests were conducted in the NAL 1.2m wind tunnel in the Mach number range of 0.8 to 1.8 and in the incidence range of -8'to 8". The Reynolds number based on core diameter varied from 1. Ito 1.7 million. For both the configurations, good agreements of CNu and Xcp were observed for data obtained from fixed Mach number tests arti Mach sweep tests. Good repeatability and consistency of the test data are observed.

Item Type: Proj.Doc/Technical Report (Technical Report)
Uncontrolled Keywords: GSLV MK II config;Force measurements;Mach sweep tests
Subjects: AERONAUTICS > Aerodynamics
Division/Department: National Trisonic Aerodynamic Facility, National Trisonic Aerodynamic Facility
Depositing User: Ms. Alphones Mary
Date Deposited: 18 Aug 2010 09:33
Last Modified: 19 Aug 2010 14:41
URI: http://nal-ir.nal.res.in/id/eprint/9000

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