Grid-Dependence Study for Simulating Propeller Crashback Using Large-Eddy Simulation with Immersed Boundary Method

doi:10.1016/j.oceaneng.2020.108211

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	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)
刊名	OCEAN ENGINEERING
	2020-12-15
卷号	218 期号:15 页码:108211
关键词	Grid-dependence Propeller Crashback Large-eddy simulation Immersed boundary method
ISSN号	0029-8018
DOI	10.1016/j.oceaneng.2020.108211
英文摘要	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.
分类号	一类
语种	英语
WOS记录号	WOS:000598977600075
其他责任者	杨晓雷
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/85696]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 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.
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.