دورية
Investigation of open channel flow with unsubmerged rigid vegetation by the lattice Boltzmann method
| العنوان: | Investigation of open channel flow with unsubmerged rigid vegetation by the lattice Boltzmann method |
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| المؤلفون: | Jing, He-fang, Cai, Yin-juan, Wang, Wei-hong, Guo, Ya-kun, Li, Chun-guang, Bai, Yu-chuan |
| المصدر: | Journal of Hydrodynamics; 20240101, Issue: Preprints p1-13, 13p |
| مستخلص: | Aquatic vegetation can significantly affect flow structure, sediment transport, bed scour and water quality in rivers, lakes, reservoirs and open channels. In this study, the lattice Boltzmann method is applied for performing the two dimensional numerical simulation of the flow structure in a flume with rigid vegetation. A multi-relaxation time model is applied to improve the stability of the numerical scheme for flow with high Reynolds number. The vegetation induced drag force is added in lattice Boltzmann equation model with the algorithm of multi-relaxation time in order to improve the simulation accuracy. Numerical simulations are performed for a wide range of flow and vegetation conditions and are validated by comparing with the laboratory experiments. Analysis of the simulated and experimentally measured flow field shows that the numerical simulation can satisfactorily reproduce the laboratory experiments, indicating that the proposed lattice Boltzmann model has high accuracy for simulating flow-vegetation interaction in open channel. |
| قاعدة البيانات: | Supplemental Index |
Find this article in full text from Springer Verlag. | تدمد: | 10016058 18780342 |
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| DOI: | 10.1007/s42241-019-0072-7 |