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Multigrid Method for Modeling Multi-Dimensional Combustion with Detailed ChemistryA highly accurate and efficient numerical method is developed for modeling 3-D reacting flows with detailed chemistry. A contravariant velocity-based governing system is developed for general curvilinear coordinates to maintain simplicity of the continuity equation and compactness of the discretization stencil. A fully-implicit backward Euler technique and a third-order monotone upwind-biased scheme on a staggered grid are used for the respective temporal and spatial terms. An efficient semi-coarsening multigrid method based on line-distributive relaxation is used as the flow solver. The species equations are solved in a fully coupled way and the chemical reaction source terms are treated implicitly. Example results are shown for a 3-D gas turbine combustor with strong swirling inflows.
Document ID
19970006622
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Zheng, Xiaoqing
(Colorado Univ. Denver, CO United States)
Liu, Chaoqun
(Colorado Univ. Denver, CO United States)
Liao, Changming
(Colorado Univ. Denver, CO United States)
Liu, Zhining
(Colorado Univ. Denver, CO United States)
McCormick, Steve
(Colorado Univ. Boulder, CO United States)
Date Acquired
August 17, 2013
Publication Date
September 1, 1996
Publication Information
Publication: Seventh Copper Mountain Conference on Multigrid Methods
Subject Category
Numerical Analysis
Accession Number
97N13551
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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