This title appears in the Scientific Report :
2005
Please use the identifier:
http://hdl.handle.net/2128/2368 in citations.
Please use the identifier: http://dx.doi.org/10.1063/1.1940056 in citations.
Stationary flow, first passage times, and macroscopic Fick's first diffusion law: Application to flow enhancement by particle trapping
Stationary flow, first passage times, and macroscopic Fick's first diffusion law: Application to flow enhancement by particle trapping
A generalized macroscopic Fick's first diffusion law is derived which describes steady-state particle flow between two baths explicitly as a function of the concentration gradient, acting as the thermodynamic driving force, times a functional of the first passage time. The latter is shown to be...
Saved in:
Personal Name(s): | Bauer, W. R. |
---|---|
Nadler, W. | |
Contributing Institute: |
John von Neumann - Institut für Computing; NIC |
Published in: | The @journal of chemical physics, 122 (2005) S. 244904 |
Imprint: |
Melville, NY
American Institute of Physics
2005
|
Physical Description: |
244904 |
PubMed ID: |
16035813 |
DOI: |
10.1063/1.1940056 |
Document Type: |
Journal Article |
Research Program: |
Betrieb und Weiterentwicklung des Höchstleistungsrechners |
Series Title: |
Journal of Chemical Physics
122 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1063/1.1940056 in citations.
A generalized macroscopic Fick's first diffusion law is derived which describes steady-state particle flow between two baths explicitly as a function of the concentration gradient, acting as the thermodynamic driving force, times a functional of the first passage time. The latter is shown to be the ratio of the number of particles trapped between the baths and the first passage time. Particle trapping is shown to be a powerful mechanism by which flow can be enhanced. This is analyzed for two examples: a potential and an entropy trap. |