Numerical study of grid turbulence in two dimensions and comparison with experiments on turbulent soap films.
Numerical simulations of two dimensional channel flow behind an array of cylinders are carried out for high Reynolds numbers. Results for the energy density and enstrophy spectra, as well as for velocity and vorticity differences, are presented. The results compare favorably with recent experiments carried out with turbulent soap films. Some marked deviations from expected behavior are found for the enstrophy spectrum and for moments of vorticity increments.
Bruneau
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CH
Mathématiques Appliquées de Bordeaux, U. Bordeaux I, 351 Cours de la Liberation, 33405 Talence Cedex, France.
Greffier
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O
Kellay
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H