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Energy relaxation method for chemical non-equilibrium flow computations

DSpace at IIT Bombay

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Title Energy relaxation method for chemical non-equilibrium flow computations
 
Creator PATIL, MA
MANDAL, JC
SWAMINATHAN, S
 
Subject flux-split algorithms
laws
reentry aerothermo dynamics
real gas effects
non-equilibrium flow
finite rate chemistry
energy relaxation method
hllc
 
Description In this paper, an algorithm for chemical non-equilibrium hypersonic flow is developed based on the concept of energy relaxation method (ERM). The new system of equations obtained are studied using finite volume method with Harten-Lax-van Leer scheme for contact (HLLQ. The original HLLC method is modified here to account for additional species and split energy equations. Higher order spatial accuracy is achieved using MUSCL reconstruction of the flow variables with van Albada limiter. The thermal equilibrium is considered for the analysis and the species data are generated using polynomial correlations. The single temperature model of Dunn and Kang is used for chemical relaxation. The computed results for a flow field over a hemispherical cylinder at Mach number of 16.34 obtained using the present solver are found to be promising and computationally (25%) more efficient. The present solver captures physically correct solution as the entropy conditions are satisfied automatically during the computations. Copyright (c) 2007 , Ltd.
 
Publisher JOHN WILEY & SONS LTD
 
Date 2011-08-16T21:08:44Z
2011-12-26T12:55:09Z
2011-12-27T05:43:46Z
2011-08-16T21:08:44Z
2011-12-26T12:55:09Z
2011-12-27T05:43:46Z
2007
 
Type Article
 
Identifier INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 54(12), 1473-1494
0271-2091
http://dx.doi.org/10.1002/fld.1442
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9623
http://hdl.handle.net/10054/9623
 
Language en