Internal flow simulation of solid rockets using an unsteady navier stokes solver

Unnikrishnan, C and Sanal Kumar, VR and Raghunandan, BN (2001) Internal flow simulation of solid rockets using an unsteady navier stokes solver. In: 37th Joint Propulsion Conference and Exhibit, 08-11 July 2001, Salt Lake City,UT,U.S.A..

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Abstract

Detailed numerical simulation of internal flow during the starting transient period of operation has been carried out using a two dimensional Navier-Stokes solver. Parametric studies have been carried out with different igniter gas temperatures but with same Mach number. It is inferred that altered variation of igniter gas temperature will alter the flame-spread as well as the starting transient history of solid rocket motors. It is also observed that decrease in igniter gas temperature can decrease the ignition peak without altering the Mach number. Relatively high ignition peak and high pressurerise rate is observed for a rocket motor with port expansion configuration where secondary ignition is apparent. Detailed picture of the velocity distribution during the starting transient is also presented to establish the closeness of the internal flow simulation in solid rocket motors with non-uniform ports. © 2001 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

Item Type:	Conference Paper
Publication:	37th Joint Propulsion Conference and Exhibit
Publisher:	American Institute of Aeronautics and Astronautics Inc.
Additional Information:	cited By 1; Conference of 37th Joint Propulsion Conference and Exhibit 2001 ; Conference Date: 8 July 2001 Through 11 July 2001; Conference Code:102854
Keywords:	Aerodynamics; Flow simulation; Mach number; Navier Stokes equations; Propulsion; Rocket engines, Flame spread; Gas temperature; Internal flows; Navier-Stokes solver; Parametric study; Solid rocket motors; Solid rockets; Starting transient, Rockets
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	13 Oct 2020 11:24
Last Modified:	13 Oct 2020 11:24
URI:	http://eprints.iisc.ac.in/id/eprint/65909

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