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Numerical studies on erosive burning in cylindrical solid propellant grain

Numerical studies on erosive burning in cylindrical solid propellant grain
Numerical studies on erosive burning in cylindrical solid propellant grain
This paper addresses erosive burning of a cylindrical composite propellant grain. Equations governing the steady axisymmetric, chemically reacting boundary layer are solved numerically. The turbulence is described by the two equation (k-?) model and Spalding’s eddy break up model is employed for the gas phase reaction rate. The governing equations are transformed and solved in the normalized stream function coordinate system. The results indicate that the dominant reaction zone lies within 20% of the boundary layer thickness close to the wall. The sharp gradient of the temperature profile near the wall is found responsible for bringing the maximum heat release zone near the surface and hence enhancement in the burning rate. The model reproduces the experimental observation that erosive burning commences only above a threshold value of axial velocity
0947-7411
579-585
Srinivasan, K.
e97abff3-2c9b-423e-bcb7-3bde3508101d
Narayanan, S.
496a8ad5-626a-442f-b61a-cd2ab3f7731e
Sharma, O. P.
1f87f495-f79a-4167-acc5-2073a85fe398
Srinivasan, K.
e97abff3-2c9b-423e-bcb7-3bde3508101d
Narayanan, S.
496a8ad5-626a-442f-b61a-cd2ab3f7731e
Sharma, O. P.
1f87f495-f79a-4167-acc5-2073a85fe398

Srinivasan, K., Narayanan, S. and Sharma, O. P. (2008) Numerical studies on erosive burning in cylindrical solid propellant grain. Heat and Mass Transfer, 44 (5), 579-585. (doi:10.1007/s00231-007-0280-5).

Record type: Article

Abstract

This paper addresses erosive burning of a cylindrical composite propellant grain. Equations governing the steady axisymmetric, chemically reacting boundary layer are solved numerically. The turbulence is described by the two equation (k-?) model and Spalding’s eddy break up model is employed for the gas phase reaction rate. The governing equations are transformed and solved in the normalized stream function coordinate system. The results indicate that the dominant reaction zone lies within 20% of the boundary layer thickness close to the wall. The sharp gradient of the temperature profile near the wall is found responsible for bringing the maximum heat release zone near the surface and hence enhancement in the burning rate. The model reproduces the experimental observation that erosive burning commences only above a threshold value of axial velocity

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More information

Published date: March 2008
Organisations: Inst. Sound & Vibration Research

Identifiers

Local EPrints ID: 353770
URI: http://eprints.soton.ac.uk/id/eprint/353770
ISSN: 0947-7411
PURE UUID: e6bd3b6f-e814-4a59-b420-169029262c18

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Date deposited: 20 Jun 2013 09:09
Last modified: 16 Jul 2019 21:30

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