Some Features of Turbulent Diffusive Processes in Open Channel Flows

Abstract

This paper deals with an application of the turbulent diffusion theory by continuous movements of Taylor to the turbulent diffusive processes in open channel flows. It is shown that the mean velocity of the flow can be related to the correlation coefficients of Lagrange by means of the similarity principle of Kolmogoroff and the diffusive characteristics are also estimated by the mean velocity under the condition of constant values in the relative turbulent intensity of uniform flows. The theoretical analysis derived in this paper is also verified through the experimentation made by fine lucite particles and dilute salt water, from a practical point of view. The mechanism of mass transfer, which consists of an essential character in the turbulent diffusive processes, will be still studied.