TY  - JOUR
AU  - Yang, Mingcheng
AU  - Theers, Mario
AU  - Hu, Jinglei
AU  - Gompper, Gerhard
AU  - Winkler, Roland G.
AU  - Ripoll, Marisol
TI  - Effect of angular momentum conservation on hydrodynamic simulations of colloids
JO  - Physical review / E
VL  - 92
IS  - 1
SN  - 1539-3755
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2015-04943
SP  - 013301
PY  - 2015
AB  - In contrast to most real fluids, angular momentum is not a locally conserved quantity in some mesoscopic simulation methods. Here we quantify the importance of this conservation in the flow fields associated with different colloidal systems. The flow field is analytically calculated with and without angular momentum conservation for the multiparticle collision dynamics (MPC) method, and simulations are performed to verify the predictions. The flow field generated around a colloidal particle moving under an external force with slip boundary conditions depends on the conservation of angular momentum, and the amplitude of the friction force is substantially affected. Interestingly, no dependence on the angular momentum conservation is found for the flow fields generated around colloids under the influence of phoretic forces. Moreover, circular Couette flow between a no-slip and a slip cylinder is investigated, which allows us to validate one of the two existing expressions for the MPC stress tensor.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000357262700014
DO  - DOI:10.1103/PhysRevE.92.013301
UR  - https://juser.fz-juelich.de/record/202761
ER  -