TY  - JOUR
AU  - Finken, R.
AU  - Lamura, A.
AU  - Seifert, U.
AU  - Gompper, G.
TI  - Two-dimensional fluctuating vesicles in linear shear flow
JO  - The European physical journal / E
VL  - 25
SN  - 1292-8941
CY  - Berlin
PB  - Springer
M1  - PreJuSER-61710
SP  - 309 - 321
PY  - 2008
N1  - Record converted from VDB: 12.11.2012
AB  - 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.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:18398568
UR  - <Go to ISI:>//WOS:000254906800007
DO  - DOI:10.1140/epje/i2007-10299-7
UR  - https://juser.fz-juelich.de/record/61710
ER  -