| Experimental and numerical investigations into flow features in an intake duct for the waterjet propulsion under mooring conditions | |
Huang RF(黄仁芳)1; Zhang, Ruizhi2; Wang YW(王一伟)1,3 ; Luo, Xianwu4; Zhu, Lei5
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| Corresponding Author | Wang, Yiwei([email protected]) ; Luo, Xianwu([email protected]) |
| Source Publication | ACTA MECHANICA SINICA
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| 2021-05-19 | |
| Pages | 18 |
| ISSN | 0567-7718 |
| Abstract | The waterjet propulsion is widely applied in the marine vessels over 30 knots, and the intake duct is considered as an essential component that strongly relates to the propulsion performance. This paper sheds light on the flow features inside an intake duct under mooring conditions by using the particle image velocimetry (PIV) technique with three-dimensional (3D) numerical simulations. The hydraulic loss gradually increase as the flow-rate increases. According to analyses via the Bernoulli equation, the hydraulic loss is composed of the frictional head loss (h(f) similar to V-1.75) and the local head loss (h(j) similar to V-2.0). A recirculation region is observed near the duct lower wall with a high-velocity flow near the upper wall, and subsequently a shear flow presents in the horizontal straight pipe with an obvious velocity gradient. Three-dimensional simulations demonstrate that the vortex pair is very strong in the recirculation region and then it gradually decreases as the fluid flows downstream. With the flow-rate increasing, the non-uniformity at the duct outlet firstly increases to a peak and then slightly decreases, while the perpendicularity at the duct outlet dramatically decreases to a minimum and then increases. This work not only reveals some physics of the waterjet propulsion under mooring conditions, but also promotes its efficient operation. |
| Keyword | Waterjet propulsion Particle image velocimetry (PIV) Intake duct Waterjet pump Mooring conditions |
| DOI | 10.1007/s10409-021-01097-9 |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000652093400001 |
| WOS Keyword | PERFORMANCE ; PUMP ; SIMULATION |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | National Natural Science Foundation of China[52006232] ; National Natural Science Foundation of China[11772340] ; Science and Technology on Water Jet Propulsion Laboratory[6142223190101] |
| Funding Organization | National Natural Science Foundation of China ; Science and Technology on Water Jet Propulsion Laboratory |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Wang, Yiwei ; Luo, Xianwu |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86817 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 2.Sci & Technol Water Jet Prop Lab, Shanghai 200011, Peoples R China; 3.Univ Chinese Acad Sci, Coll Engn Sci, Beijing 100049, Peoples R China; 4.Tsinghua Univ, Dept Energy & Power Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China; 5.China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R China |
| Recommended Citation GB/T 7714 | Huang RF,Zhang, Ruizhi,Wang YW,et al. Experimental and numerical investigations into flow features in an intake duct for the waterjet propulsion under mooring conditions[J]. ACTA MECHANICA SINICA,2021:18.Rp_Au:Wang, Yiwei, Luo, Xianwu |
| APA | 黄仁芳,Zhang, Ruizhi,王一伟,Luo, Xianwu,&Zhu, Lei.(2021).Experimental and numerical investigations into flow features in an intake duct for the waterjet propulsion under mooring conditions.ACTA MECHANICA SINICA,18. |
| MLA | 黄仁芳,et al."Experimental and numerical investigations into flow features in an intake duct for the waterjet propulsion under mooring conditions".ACTA MECHANICA SINICA (2021):18. |
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| Jp2021F228.pdf（11187KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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