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A segregated method for compressible flow computation. Part II: general divariant compressible flows
Author(s) -
Hauke Guillermo,
Landaberea Aitor,
Garmendia Iñaki,
Canales Javier
Publication year - 2005
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.999
Subject(s) - computation , classification of discontinuities , compressibility , robustness (evolution) , compressible flow , incompressible flow , computer science , mathematics , mathematical optimization , computational science , mechanics , mathematical analysis , algorithm , physics , biochemistry , chemistry , gene
Typically, segregated methods have been used for the computation of incompressible flows whereas coupled solvers, for compressible flows. Compared to coupled solvers, segregated methods present the advantage of computational savings in RAM memory and CPU time, although at the cost of an inferior robustness. However, previously published segregated algorithms for general compressible flows are known to present pitfalls, like convergence to wrong solutions, lack of robustness in the presence of strong discontinuities, such as normal and oblique shocks, and complicated boundary condition imposition. Therefore, in this paper a segregated method for non‐isothermal compressible flows is proposed that preserves the thermodynamic coupling and overcomes the criticisms of existing methods. Copyright © 2005 John Wiley & Sons, Ltd.