| Grid-Dependence Study for Simulating Propeller Crashback Using Large-Eddy Simulation with Immersed Boundary Method | |
Liao F(廖飞) ; Yang XL(杨晓雷); Wang SZ(王士召); He GW(何国威)
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| Source Publication | OCEAN ENGINEERING
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| 2020-12-15 | |
| Volume | 218Issue:15Pages:108211 |
| ISSN | 0029-8018 |
| Abstract | Simulating the flow around a propeller using large-eddy simulation (LES) with the immersed boundary (IB) method is challenging and computationally expensive. In this work, we carry out the grid-dependence study of LES with IB for simulating a propeller in crashback mode using four sets of gradually refined grids. The simulation results show that the grid-resolution requirements for accurately predicting different flow quantities are different. Specifically, it is found that the side-force coefficient and the averaged streamwise velocity are less sensitive to grid resolutions as compared with the thrust force coefficient and the turbulence kinetic energy, respectively. Furthermore, it is found that the computed results in the near wake region and the region around the blade are more sensitive to grid resolutions as compared with the far wake region, where the predictions from the four different grids are similar to each other. This suggests that a coarse grid simulation is adequate if only the far wake region is of interest, while a fine grid simulation is required if one cares about the flow around the blade and the flow in the near wake region. |
| Keyword | Grid-dependence Propeller Crashback Large-eddy simulation Immersed boundary method |
| DOI | 10.1016/j.oceaneng.2020.108211 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000598977600075 |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | 杨晓雷 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/85696 |
| Collection | 非线性力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Liao F,Yang XL,Wang SZ,et al. Grid-Dependence Study for Simulating Propeller Crashback Using Large-Eddy Simulation with Immersed Boundary Method[J]. OCEAN ENGINEERING,2020,218,15,:108211.Rp_Au:杨晓雷 |
| APA | 廖飞,杨晓雷,王士召,&何国威.(2020).Grid-Dependence Study for Simulating Propeller Crashback Using Large-Eddy Simulation with Immersed Boundary Method.OCEAN ENGINEERING,218(15),108211. |
| MLA | 廖飞,et al."Grid-Dependence Study for Simulating Propeller Crashback Using Large-Eddy Simulation with Immersed Boundary Method".OCEAN ENGINEERING 218.15(2020):108211. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2020427.pdf（7812KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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