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Performance of a multigrid calculation procedure in three‐dimensional sudden expansion flows
Author(s) -
Vanka S. P.
Publication year - 1986
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.1650060705
Subject(s) - multigrid method , reynolds number , mathematics , convergence (economics) , flow (mathematics) , compressibility , computational fluid dynamics , incompressible flow , momentum (technical analysis) , mathematical analysis , mathematical optimization , mechanics , physics , geometry , partial differential equation , turbulence , finance , economics , economic growth
The performance of a recently developed calculation procedure for steady incompressible flows is assessed in a variety of three‐dimensional sudden expansion type flows representative of those encountered in several types of industrial equipment. The calculation procedure, called here BLIMM (for bl ock‐ im plicit m ultigrid m ethod), is based on a coupled solution of the three‐dimensional momentum and continuity equations in primitive variables, using the multigrid technique. Different Reynolds numbers and finite difference grids are considered for each flow situation. The rates of convergence and the computational times are reported for each case.