Abstract
The two-dimensional turbulent buoyant jet is analyzed using a vertical length scale defined by L = M0F0 F0−23 where Ma is the rate at which momentum is added at the source and F0 is the rate at which buoyancy is added. Introduction of the length scales into the equations of motion shows the ratio x/L directly controls the bouyancy term. The pure momentum jet corresponds to the limit x/L→;0 and the pure buoyant plume to x/L→∞. Utilizing an eddy viscosity model, a similarity solution is presented for the buoyant plume, a series solution is used to develop this eddy viscosity model, and a numerical solution is presented for the buoyant jet. Comparisons are made with available experimental data.
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