The k-epsilon-<(t'(2))over bar>-gamma turbulence model is used to predict t
he self-similar plane plume in a quiescent environment. This model has been
recently used to predict the turbulent axisymmetric plume. Modelled transp
ort equations for the turbulent kinetic energy (k), its dissipation (epsilo
n), mean square temperature fluctuations (<(t'(2))over bar>) and intermitte
ncy factor (gamma) have been solved numerically along with the equations fo
r the mean quantities. A small change in one of the model constants, incorp
oration of the dissipation term in the intermittency transport equation and
withdrawal of the intermittency interaction invariant term from the dissip
ation equation yield predictions of mean and turbulent quantities including
intermittency that are in good agreement with the experimental data. (C) 2
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