Abstract
The mixing behavior of a 45° two‐dimensional buoyant jet in a linearly stratified fluid has been studied. Experimental data on the maximum height of rise and the concentration distribution of a tracer in the spreading layer are presented for the entire plume‐jet range. Characteristic variables are successfully correlated by dimensional analysis. Compared to vertical discharges, the 45° momentum jet spreads at a lower level; the spreading layer extends below the source elevation. However, the minimum dilution in the spreading layer remains unchanged. The present data, which complement previously reported data for vertical jets, are also compared with calculations of an integral jet model. The results can be used for outfall design or for the verification of detailed numerical models of turbulent buoyant jets in stratified fluid.
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