Lin, C-D;
Luo, KH;
Gan, Y-B;
Lai, H-L;
(2018)
Thermodynamic Nonequilibrium Features in Binary Diffusion.
Communications in Theoretical Physics
, 69
(6)
pp. 722-726.
10.1088/0253-6102/69/6/722.
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Abstract
Diffusion is a ubiquitous physical phenomenon where thermodynamic nonequilibrium effects (TNEs) are outstanding issues. In this work, we employ the discrete Boltzmann method to investigate the TNEs in the dynamic process of binary diffusion. The main features of the distribution function in velocity space are recovered and discussed. It is found that, with the decreasing gradients of macroscopic quantities (such as density, concentration, velocity, etc.), both the local and global TNEs decrease with the time but increase with the relaxation time in a power law, respectively
| Type: | Article |
|---|---|
| Title: | Thermodynamic Nonequilibrium Features in Binary Diffusion |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/0253-6102/69/6/722 |
| Publisher version: | http://doi.org/10.1088/0253-6102/69/6/722 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | thermodynamic nonequilibrium, binary diffusion, discrete Boltzmann |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10053916 |
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