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| Research progress of lattice Boltzmann modeling for particle-fluid system |
| Received:February 23, 2022 Revised:April 23, 2022 |
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| DOI：10.7511/jslxCMGM202209 |
| KeyWord:particle-fluid system lattice Boltzmann method particle-resolved direct numerical simula-tion discrete particle simulation two-fluid model |
| Author | Institution |
| 王利民 |
中国科学院过程工程研究所 多相复杂系统国家重点实验室, 北京 ;中国科学院大学 化学工程学院, 北京 |
| 付少童 |
中国科学院过程工程研究所 多相复杂系统国家重点实验室, 北京 ;中国科学院大学 化学工程学院, 北京 |
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| Abstract: |
| Two kinds of discrete models are presented for modeling a particle-fluid system at different levels (different time-spatial scales and accuracy) in the framework of lattice Boltzmann method,namely lattice Boltzmann based particle-resolved direct numerical simulation (LB-based PR-DNS) and lattice Boltzmann based discrete particle simulation (LB-based DPS).The exploratory study on lattice Boltzmann based two-fluid model (LB-based TFM) in Euler-Euler framework is also reviewed.LB-based PR-DNS where particle size is much larger than lattice size,can directly resolve the flow at gas-solid interface and detailed dynamic interaction,while LB-based DPS where lattice size is much larger than particle diameter,achieves a good balance between computational accuracy,time consumption and computational efficiency,and can obtain the macro information such as time-averaged flow field,as well as the local information such as particle trajectories.Both LB-based DNS and DPS are powerful tools in exploring particle-fluid system,but further reasearch into LB-based TFM is still needed to be developed in the future. |
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