Two-dimensional reattaching jet flows including the effects of curvature on entrainment

摘要: The analysis given previously for predicting the average pressure and length of region recirculating flow enclosed by a low-speed turbulent jet, issuing parallel to flat plate, has been modified take into account different rates entrainment two edges curved initial mixing forces near reattachment. There is improved correlation between theory experiment. applied due jet emerging at an angle gives good prediction recirculation particular value entrainment-ratio parameter.Curvature considerable effect on entrainment, but first-order mixing-length indicates that this need not necessarily be accompanied marked deviation in velocity profile from plane jet.