DOI: 10.1615/TSFP3
DIRECT NUMERICAL SIMULATION OF THE PRIMARY BREAKUP OF A SPATIALLY DEVELOPING LIQUID JET
RESUMO
Although the number of publications in the area of two phase flows increases, there are only a few DNS studies concerned with the primary breakup of a liquid film, probably due to the fact that often high density ratios and the capillary forces lead to many numerical problems. In addition, prescribing realistic velocity inlet data at the inflow boundary, requires a sophisticated procedure in order to obtain physically realistic prediction results. Therefore the focus of this paper is to perform a three dimensional, spatially developing simulation of a liquid jet exhausting into a gaseous atmosphere. Special attention will be paid to the question if the results of 3D and 2D simulation are comparable, the latter being attractive in view of saving computing time, when doing a stability analysis of such a flow (not only in the context of DNS).