The Transport Time pdf for a Simple Turbulent Flow

Author: Wenzel A.   Steinecke I.   Becker A.  

Publisher: Springer Publishing Company

ISSN: 0006-8314

Source: Boundary-Layer Meteorology, Vol.93, Iss.1, 1999-10, pp. : 117-132

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Abstract

In a turbulent fluid, the time a particle needs to travel from a point source to the observation point, can be considered as a random variable. It is shown that the probability density function (pdf) for this random variable is determined by the Lagrangian particle position pdf. The characteristics of the transport time pdf are discussed for the simple case of a turbulent fluid moving with a constant mean velocity.