TY  - JOUR
AU  - Yang, M.
AU  - Ripoll, M.
TI  - Drift velocity in non-isothermal inhomogeneous systems
JO  - The journal of chemical physics
VL  - 136
SN  - 0021-9606
CY  - Melville, NY
PB  - American Institute of Physics
M1  - PreJuSER-21323
SP  - 204508
PY  - 2012
N1  - Record converted from VDB: 12.11.2012
AB  - Drift velocity and driving force are not directly proportional in the case of inhomogeneous suspensions, where a space dependent mobility induces an additional contribution to the drift velocity. Similarly, particle flux and drift velocity are related not only by the gradient of density but also by an additional contribution given by the gradient of the self-diffusion coefficient. We provide quantitative support to this scenario in a non-equilibrium system by means of computer simulations with a temperature gradient. Moreover, our simulation results demonstrate that the temperature gradient-induced mass transport coefficient, namely thermal diffusion coefficient, is not directly proportional to the drift velocity so that the well-accepted relation of proportionality is just an approximation.
KW  - Algorithms
KW  - Computer Simulation
KW  - Diffusion
KW  - Models, Chemical
KW  - Suspensions
KW  - Thermodynamics
KW  - Suspensions (NLM Chemicals)
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:22667572
UR  - <Go to ISI:>//WOS:000304818400040
DO  - DOI:10.1063/1.4723685
UR  - https://juser.fz-juelich.de/record/21323
ER  -