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PERFORMANCE ANALYSIS OF DIFFERENT SOLVERS FOR COMPUTING THE RADIATIVE TRANSFER EQUATION IN COMPLEX GEOMETRIES USING FINITE VOLUME METHOD AND BLOCK STRUCTURED GRIDS

卷 9, 册 3, 2017, pp. 269-282
DOI: 10.1615/ComputThermalScien.2017019001
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摘要

The finite volume method (FVM) is adopted to solve the radiative transfer equation in complex 3D geometries using block structured grids. In the standard solution algorithm, the discrete set of algebraic equations in the FVM is solved using the Gauss-Seidel method with the mesh sweeping algorithm. This algorithm gives an optimal order in which the control volumes are visited and the calculations are performed. However by dealing with radiation in industrial size problems and complex geometries, this procedure may not be the most efficient option to be employed. This paper investigates the performance of the sweeping algorithm and several other alternative solutions to point out the best strategy to be followed when dealing with heat radiation and large-scale industrial problems using FVM and block structured grids. For this purpose, a real combustion chamber with two block structured grids is studied after a successful verification on three simple tests. While a temperature distribution was fixed inside and at the boundaries of the chamber, the radiative heat source term was calculated and the computational time required for each solver was measured. The results show that the cyclic reduction method with SSOR preconditioner performs better than the sweeping algorithm for cases with black walls and slightly reflecting walls.

对本文的引用
  1. Sahai Amal, Johnston Christopher O., Lopez Bruno, Panesi Marco, Flow-radiation coupling inCO2hypersonic wakes using reduced-order non-Boltzmann models, Physical Review Fluids, 4, 9, 2019. Crossref

  2. Miranda Flavia C., Coelho Pedro J., Mare Francesca di, Janicka Johannes, Study of turbulence-radiation interactions in large-eddy simulation of scaled Sandia flame D, Journal of Quantitative Spectroscopy and Radiative Transfer, 228, 2019. Crossref

  3. Fraga G.C., Miranda F.C., França F.H.R., Janicka J., Coelho P.J., Assessment of a model for emission subgrid-scale turbulence-radiation interaction applied to a scaled Sandia flame DD, Journal of Quantitative Spectroscopy and Radiative Transfer, 248, 2020. Crossref

  4. Miranda F. C., Coelho P. J., Ströhle J., Janicka J., Large-eddy simulation of a bluff-body stabilised nonpremixed flame with radiation heat transfer, Combustion Theory and Modelling, 24, 4, 2020. Crossref

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