Conditional methods in application for Lagrangian modeling
نویسنده
چکیده
The exact unclosed equation for the phase-space density function ~or corresponding Lagrangian pdf! in turbulent flows is obtained using conditional techniques. The equation has direct implications for stochastic Lagrangian models based on the assumption of similarity with a Markov process. The problem of random particle sources is examined and the appropriate correcting term is suggested. © 1998 American Institute of Physics. @S1070-6631~98!00404-8#
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