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A CHARACTERISTIC‐LIKE METHOD FOR THERMALLY EXPANDABLE FLOW ON UNSTRUCTURED TRIANGULAR GRIDS
Author(s) -
HALL C. A.,
PORSCHING T. A.
Publication year - 1996
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/(sici)1097-0363(19960430)22:8<731::aid-fld376>3.0.co;2-i
Subject(s) - discretization , delaunay triangulation , flow (mathematics) , mathematics , navier–stokes equations , domain (mathematical analysis) , finite difference method , mechanics , mathematical analysis , geometry , physics , compressibility
Finite‐difference‐like discretizations are developed for the time‐dependent Navier–Stokes equations and the thermal energy equation on Delaunay triangulations of the flow domain. The flow is assumed to be thermally expandable; that is, the density varies only with temperature. A characteristic‐ like (CL) method is used to discretize the temporal and convective terms. The dual variable method reduces the size of the discrete system by a factor of five.