| Large eddy simulation of turbulent wake flow around a marine propeller under the influence of incident waves | |
| Kan, Kan; Li, Haoyu; Yang ZX(杨子轩) | |
| Source Publication | PHYSICS OF FLUIDS
 |
| 2023-05 | |
| Volume | 35Issue:5Pages:55124 |
| ISSN | 1070-6631 |
| Abstract | In practical applications, propellers often operate beneath incident waves. To investigate the effects of waves on turbulent propeller wakes, a comparative study of the instantaneous flow fields and turbulent statistics of propeller wakes under open-water condition and with incident waves is conducted through the large-eddy simulation framework. The simulations are performed on a Cartesian grid, with the air-water interface captured using a coupled level-set and volume-of-fluid method. The complex geometry of the propeller is captured using an immersed boundary method. The results show that, near the water surface, the existence of incident waves accelerates the wake flow in the axial direction. Both the mean axial velocity and turbulent kinetic energy exhibit phase-lag behavior in the presence of incident waves. Waves increase the instability of the flow in the far-wake region, resulting in the rising of turbulent kinetic energy. Further analysis of the power spectral density shows that the velocity fluctuations gain energy from the waves at low frequencies, and nonlinear interactions between wave-induced motion and turbulent fluctuations transport energy from low to high frequencies as the wake flows downstream. The present study shows the potential of the large-eddy simulation framework to provide engineering guidance and a theoretical basis for the design and operation of propellers in wave environments. |
| DOI | 10.1063/5.0152232 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000985539700011 |
| WOS Research Area | Mechanics ; Physics, Fluids & Plasmas |
| Funding Organization | National Natural Science Foundation of China (NSFC) Basic Science Center Program [11988102] ; NSFC project [52009033, 11972038] ; Natural Science Foundation of Jiangsu Province [BK20200509] ; Postdoctoral Research Foundation of China [2022T150185, 2022M711021] ; Postgraduate Research and Practice Innovation Program of Jiangsu Province [SJCX22_0180] |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Yang, ZX (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. ; Yang, ZX (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92422 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.{Kan Kan, Li Haoyu} Hohai Univ Coll Energy & Elect Engn Nanjing 211100 Peoples R China 2.{Kan Kan} Hohai Univ Coll Water Conservancy & Hydropower Engn Nanjing 210098 Peoples R China 3.{Yang Zixuan} Chinese Acad Sci Inst Mech Beijing 100190 Peoples R China 4.{Yang Zixuan} Univ Chinese Acad Sci Sch Engn Sci Beijing 101408 Peoples R China |
| Recommended Citation GB/T 7714 | Kan, Kan,Li, Haoyu,Yang ZX. Large eddy simulation of turbulent wake flow around a marine propeller under the influence of incident waves[J]. PHYSICS OF FLUIDS,2023,35,5,:55124. |
| APA | Kan, Kan,Li, Haoyu,&杨子轩.(2023).Large eddy simulation of turbulent wake flow around a marine propeller under the influence of incident waves.PHYSICS OF FLUIDS,35(5),55124. |
| MLA | Kan, Kan,et al."Large eddy simulation of turbulent wake flow around a marine propeller under the influence of incident waves".PHYSICS OF FLUIDS 35.5(2023):55124. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2023A037.pdf（5268KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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