Diffusion of a deformable body in a random flow

G. Frenkel; M. Schwartz

doi:10.1016/S0378-4371(01)00268-0

Diffusion of a deformable body in a random flow

G. Frenkel^*, M. Schwartz

^*Corresponding author for this work

School of Physics and Astronomy

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We consider a deformable body immersed in an incompressible liquid that is randomly stirred. Sticking to physical situations in which the body departs only slightly from its spherical shape, we calculate the diffusion constant of the body. We give explicitly the dependence of the diffusion constant on the velocity correlations in the liquid and on the size of the body. We emphasize the particular case in which the random velocity field follows from thermal agitation.

Original language	English
Pages (from-to)	278-284
Number of pages	7
Journal	Physica A: Statistical Mechanics and its Applications
Volume	298
Issue number	3-4
DOIs	https://doi.org/10.1016/S0378-4371(01)00268-0
State	Published - 15 Sep 2001

Keywords

Deformable body
Deformation
Drop diffusion
Noise
Size effect

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10.1016/S0378-4371(01)00268-0

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AB - We consider a deformable body immersed in an incompressible liquid that is randomly stirred. Sticking to physical situations in which the body departs only slightly from its spherical shape, we calculate the diffusion constant of the body. We give explicitly the dependence of the diffusion constant on the velocity correlations in the liquid and on the size of the body. We emphasize the particular case in which the random velocity field follows from thermal agitation.

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KW - Deformation

KW - Drop diffusion

KW - Noise

KW - Size effect

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JO - Physica A: Statistical Mechanics and its Applications

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ER -

Diffusion of a deformable body in a random flow

Abstract

Keywords

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