A Modified Body Force Model for a Submerged Waterjet
The submerged waterjet exhibits advantages such as uniform inflow, minimal flow distortion, and excellent acoustic performance, making it particularly suitable for high-speed vessels. This study investigates the open-water characteristics of the submerged waterjet and develops a body force model for...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-07-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/7/1314 |
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| author | Dakui Feng Yongyan Ma Zichao Cai Pengwei Yang Yanlin Zou |
| author_facet | Dakui Feng Yongyan Ma Zichao Cai Pengwei Yang Yanlin Zou |
| author_sort | Dakui Feng |
| collection | DOAJ |
| description | The submerged waterjet exhibits advantages such as uniform inflow, minimal flow distortion, and excellent acoustic performance, making it particularly suitable for high-speed vessels. This study investigates the open-water characteristics of the submerged waterjet and develops a body force model for the submerged waterjet propulsion system. First, under uniform inflow conditions, numerical simulations were performed using the body force method by replacing the rotor with a virtual blade and simultaneously replacing both the rotor and stator. The results of the body force model were then compared in detail with those obtained using the sliding mesh method. Second, the influence of the inflow velocity plane position on the results of the body force model was analyzed. The results indicate that the body force method, which replaces both the rotor and stator with a virtual blade, fails to accurately simulate the forces acting on various components of the propeller and the true distribution of the propeller’s flow field. In contrast, the method that replaces only the rotor with a virtual blade produces results for component forces and flow fields that are largely consistent with the results of the sliding mesh method, demonstrating the stability and reliability of the body force model. Additionally, the position of the inflow velocity plane has no significant effect on the model’s computational results. |
| format | Article |
| id | doaj-art-78a2b72c2c664d3ba350df30b7c4fe62 |
| institution | Kabale University |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-78a2b72c2c664d3ba350df30b7c4fe622025-08-20T03:58:26ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-07-01137131410.3390/jmse13071314A Modified Body Force Model for a Submerged WaterjetDakui Feng0Yongyan Ma1Zichao Cai2Pengwei Yang3Yanlin Zou4Key Laboratory of Ship and Ocean Hydrodynamics of Hubei Province, School of Naval Architecture & Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaKey Laboratory of Ship and Ocean Hydrodynamics of Hubei Province, School of Naval Architecture & Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaKey Laboratory of Ship and Ocean Hydrodynamics of Hubei Province, School of Naval Architecture & Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaKey Laboratory of Ship and Ocean Hydrodynamics of Hubei Province, School of Naval Architecture & Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaKey Laboratory of Ship and Ocean Hydrodynamics of Hubei Province, School of Naval Architecture & Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaThe submerged waterjet exhibits advantages such as uniform inflow, minimal flow distortion, and excellent acoustic performance, making it particularly suitable for high-speed vessels. This study investigates the open-water characteristics of the submerged waterjet and develops a body force model for the submerged waterjet propulsion system. First, under uniform inflow conditions, numerical simulations were performed using the body force method by replacing the rotor with a virtual blade and simultaneously replacing both the rotor and stator. The results of the body force model were then compared in detail with those obtained using the sliding mesh method. Second, the influence of the inflow velocity plane position on the results of the body force model was analyzed. The results indicate that the body force method, which replaces both the rotor and stator with a virtual blade, fails to accurately simulate the forces acting on various components of the propeller and the true distribution of the propeller’s flow field. In contrast, the method that replaces only the rotor with a virtual blade produces results for component forces and flow fields that are largely consistent with the results of the sliding mesh method, demonstrating the stability and reliability of the body force model. Additionally, the position of the inflow velocity plane has no significant effect on the model’s computational results.https://www.mdpi.com/2077-1312/13/7/1314RANSsubmerged waterjetopen-water performancebody force model |
| spellingShingle | Dakui Feng Yongyan Ma Zichao Cai Pengwei Yang Yanlin Zou A Modified Body Force Model for a Submerged Waterjet Journal of Marine Science and Engineering RANS submerged waterjet open-water performance body force model |
| title | A Modified Body Force Model for a Submerged Waterjet |
| title_full | A Modified Body Force Model for a Submerged Waterjet |
| title_fullStr | A Modified Body Force Model for a Submerged Waterjet |
| title_full_unstemmed | A Modified Body Force Model for a Submerged Waterjet |
| title_short | A Modified Body Force Model for a Submerged Waterjet |
| title_sort | modified body force model for a submerged waterjet |
| topic | RANS submerged waterjet open-water performance body force model |
| url | https://www.mdpi.com/2077-1312/13/7/1314 |
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