A modified form of the k-epsilon model for predicting wall turbulence

The high Reynolds number form of the k-epsilon model is extended and tested by application to a fully developed pipe flow. It is established that the model is valid throughout the fully turbulent, semilaminar and laminar regions of the flow. Unlike many previously proposed forms of the k-epsilon model, the present form does not have to be used in conjunction with empirical wall function formulas and does not include additional terms in the k and epsilon equations. Comparison between predicted and measured dissipation rates in the important wall region is also possible.