Diffusion of passive scalar in a finite-scale random flow
We consider a solvable model of the decay of scalar variance in a single-scale random velocity field. We show that if there is a separation between the flow scale k_flow^{-1} and the box size k_box^{-1}, the decay rate lambda ~ (k_box/k_flow)^2 is determined by the turbulent diffusion of the box-sca...
Main Authors: | Schekochihin, A, Haynes, P, Cowley, S |
---|---|
Format: | Journal article |
Published: |
2004
|
Similar Items
-
Diffusion of passive scalar in a finite-scale random flow.
by: Schekochihin, A, et al.
Published: (2004) -
Diffusion of passive scalar in a finite-scale random flow
by: Schekochihin, A, et al.
Published: (2004) -
Fractal Iso-Contours of Passive Scalar in Two-Dimensional Smooth Random Flows
by: Vucelja, Marija, et al.
Published: (2016) -
On geometric properties of passive random advection
by: Boldyrev, S, et al.
Published: (1999) -
Geometric properties of passive random advection
by: Boldyrev, SA, et al.
Published: (2000)