%0 Journal Article
%A Finken, R.
%A Lamura, A.
%A Seifert, U.
%A Gompper, G.
%T Two-dimensional fluctuating vesicles in linear shear flow
%J The European physical journal / E
%V 25
%@ 1292-8941
%C Berlin
%I Springer
%M PreJuSER-61710
%P 309 - 321
%D 2008
%Z Record converted from VDB: 12.11.2012
%X The stochastic motion of a two-dimensional vesicle in linear shear flow is studied at finite temperature. In the limit of small deformations from a circle, Langevin-type equations of motion are derived, which are highly nonlinear due to the constraint of constant perimeter length. These equations are solved in the low-temperature limit and using a mean-field approach, in which the length constraint is satisfied only on average. The constraint imposes non-trivial correlations between the lowest deformation modes at low temperature. We also simulate a vesicle in a hydrodynamic solvent by using the multi-particle collision dynamics technique, both in the quasi-circular regime and for larger deformations, and compare the stationary deformation correlation functions and the time autocorrelation functions with theoretical predictions. Good agreement between theory and simulations is obtained.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:18398568
%U <Go to ISI:>//WOS:000254906800007
%R 10.1140/epje/i2007-10299-7
%U https://juser.fz-juelich.de/record/61710