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Large eddy simulation of the subcritical flow past a circular cylinder: numerical and modeling aspects
Author(s) -
Breuer M.
Publication year - 1998
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(19981215)28:9<1281::aid-fld759>3.0.co;2-#
Subject(s) - large eddy simulation , mechanics , cylinder , computational fluid dynamics , flow (mathematics) , physics , engineering , mechanical engineering , turbulence
The turbulent flow past a circular cylinder ( Re =3900) was computed by large eddy simulation (LES). The objective was not to investigate the physical phenomena of this flow in detail but to study numerical and modeling aspects which influence the quality of LES solutions. Concerning the numerical method, the most important component is the discretization of the non‐linear convective fluxes. Five different schemes were investigated. Also, the influence of different grid resolutions was examined. Two aspects play an important role on the modeling side, namely the near‐wall model and the subgrid scale model. Owing to the restriction to low Reynolds numbers in this study, no‐slip boundary conditions were used at solid walls. Therefore, only the second aspect was taken into account. Two different subgrid scale models were applied. Additionally, LES computations without any subgrid scale modeling were carried out in order to prove the performance of the models. The results were evaluated by comparison with available experimental data. © 1998 John Wiley & Sons, Ltd.