Seminarium Zakładu Mechaniki i Fizyki Płynów FOURIER-MODES AND SPATIAL-STRUCTURES IN A CAVITY-BOUNDARY LAYER INTERACTION (godz. 12:30, sala 100) prof. François Lusseyran, LIMSI-Orsay, France środa, 4 grudnia 2002

The dynamic behavior of the vortex structures occurring in a cavity in interaction with a boundary layer controls the flow confinement inside the cavity. The vortex structures present small scales as well as large scales related to the cavity geometry. Theses eddies are usually non-stationary. One of main applications of this study concerns the pollutant dispersion within an urban street canyon when ambient winds aloft are perpendicular to the street. Experimental and numerical characterizations of the vortex structures are developed at moderate Reynolds numbers.