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Employment of second‐moment closure for calculation of turbulent recirculating flows in complex geometries with collocated variable arrangement
Author(s) -
Farhanieh Bijan,
Davidson Lars,
Sundén Bengt
Publication year - 1993
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.1650160606
Subject(s) - closure (psychology) , turbulence , moment closure , moment (physics) , computational fluid dynamics , variable (mathematics) , mechanics , geology , mathematics , statistical physics , geometry , physics , classical mechanics , mathematical analysis , economics , market economy
This paper addresses the implementation of second‐moment closure into a collocated variable arrangement body‐fitted‐finite‐volume scheme in which Cartesian velocity components are used. The methods for avoiding instability in the solution procedure are described. A new method for the treatment of the near‐wall regions for the momentum equations, as well as the prescription of the stresses at the wall, is described in detail. The performance of the methodology is assessed by applying it to two flow situations, where experimental data are available: the flow over a backward step, and the flow through a sinusoidal pipe constriction. The results are very promising.