Weighted sum of gray gas modeling for nongray radiation in combusting environment using the hybrid solution methodology

Yadav, R and Kushari, A and Verma, A K and Eswaran, Vinayak (2013) Weighted sum of gray gas modeling for nongray radiation in combusting environment using the hybrid solution methodology. Numerical Heat Transfer, Part B Fundamentals, 64 (2). pp. 174-197. ISSN 1040-7790

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Abstract

A hybrid solution approach is proposed to solve the radiation transfer equation (RTE) in combusting environment using the weighted sum of gray gases model for modeling the absorption coefficient. The hybrid approach uses a selective combination of the finite-volume method (FVM) and P1 approximation to solve the RTE for different gray gases. A comprehensive study with a wide range of test cases with homogenous and nonhomogenous media is carried out to study the accuracy, speed, and convergence rate of the hybrid solution approach. The differences between hybrid and FVM results are described, and the sources of errors are discussed

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IITH Creators:

IITH Creators	ORCiD
Eswaran, Vinayak	UNSPECIFIED

Item Type:

Article

Uncontrolled Keywords:

Absorption co-efficient; Convergence rates; Hybrid solution approaches; Hybrid solution methodology; Nonhomogenous media; Radiation transfer equations; Weighted sum of gray gas; Weighted-sum-of-gray-gases models

Subjects:

Physics > Mechanical and aerospace

Divisions:

Department of Mechanical & Aerospace Engineering

Depositing User:

Team Library

Date Deposited:

28 Nov 2014 10:54

Last Modified:

30 Aug 2017 10:48

URI:

http://raiithold.iith.ac.in/id/eprint/1055