Direct computation of the Lagrangian autocorrelation is not feasible since generally one cannot measure the turbulent velocity of each fluid particle. A model whereby the Lagrangian autocorrelation is determined in terms of a domain integral of a set regular Eulerian autocorrelations is advanced. The Eulerian autocorrelations are to be aquired concurrently at all positions in the flow field. Three novel averaging procedures are utilized for obtaining the relationship between the Lagrangian and Eulerian autocorrelations. This relationship is not constrained to either homogeneous or isotropic turbulence. (DePo)
A relation between the Lagrangian and Eulerian turbulent velocity autocorrelation
Relation zwischen der Lagrange Funktion und der Euler Gleichung fuer Autokorrelationen turbulenter Geschwindigkeiten
AIAA-Papers ; 1-8
1978
8 Seiten, 3 Bilder, 17 Quellen
Aufsatz (Konferenz)
Englisch
Computation of Turbulent Evaporating Sprays: Eulerian Versus Lagrangian Approach (93-GT-333)
Online Contents | 1995
|