Numerical study on hydrodynamic characteristics of hybrid contra-rotating propeller
<b>[Objectives]</b> In order to study the propulsion performance of the hybrid contra-rotating propeller,<b>[Methods]</b> the hydrodynamic characteristics of the propeller, the podded propeller and the hybrid contra-rotating propeller(CRP) are numerically simulated by using s...
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| Format: | Article |
| Language: | English |
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Editorial Office of Chinese Journal of Ship Research
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| Series: | Zhongguo Jianchuan Yanjiu |
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| Online Access: | http://www.ship-research.com/EN/Y2019/V14/I2/30 |
| _version_ | 1818418179238526976 |
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| author | Zeng Wang Li Ye Qin Jiangtao |
| author_facet | Zeng Wang Li Ye Qin Jiangtao |
| author_sort | Zeng Wang |
| collection | DOAJ |
| description | <b>[Objectives]</b> In order to study the propulsion performance of the hybrid contra-rotating propeller,<b>[Methods]</b> the hydrodynamic characteristics of the propeller, the podded propeller and the hybrid contra-rotating propeller(CRP) are numerically simulated by using sliding mesh method respectively, the differences in the hydrodynamic characteristics of each propulsion component in the hybrid CRP compared to those of the entire hybrid CRP are analyzed in detail, and the interaction between various parts of the hybrid CRP is studied.<b>[Results]</b> The results show that the thrusting coefficient, the torque coefficient and the open water efficiency of the forward propeller decrease as the speed coefficient decreases due to the suction effect of the rear propeller on the forward propeller in the hybrid CRP, in which the trend is different from that in the single propeller. The thrusting coefficient, the torque coefficient and the open water efficiency of the rear propeller are different from those of the single podded propeller due to the blocking effect of pod and hub and the interference effect of unsteady wake of the forward propeller on the rear propeller. The calculated efficiency of the hybrid CRP is lower than that of the single propeller, and the energy absorption effect of the rear propeller on the forward propeller wake is not reflected. Therefore, the matching of the geometry parameters of the forward and rear propellers should be further considered in the design and study of the hybrid CRP.<b>[Conclusions]</b> This study results can provide reference for the optimal design and engineering application of the hybrid CRP. |
| first_indexed | 2024-12-14T12:18:34Z |
| format | Article |
| id | doaj.art-486fc3d868ef435c87540f49e346416f |
| institution | Directory Open Access Journal |
| issn | 1673-3185 1673-3185 |
| language | English |
| last_indexed | 2024-12-14T12:18:34Z |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-486fc3d868ef435c87540f49e346416f2022-12-21T23:01:34ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31851673-31851423035,6210.19693/j.issn.1673-3185.01022201902005Numerical study on hydrodynamic characteristics of hybrid contra-rotating propellerZeng Wang0Li Ye1Qin Jiangtao2State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaKey Laboratory of High Performance Ship Technology of Ministry of Education, Wuhan University of Technology, Wuhan 430063, China<b>[Objectives]</b> In order to study the propulsion performance of the hybrid contra-rotating propeller,<b>[Methods]</b> the hydrodynamic characteristics of the propeller, the podded propeller and the hybrid contra-rotating propeller(CRP) are numerically simulated by using sliding mesh method respectively, the differences in the hydrodynamic characteristics of each propulsion component in the hybrid CRP compared to those of the entire hybrid CRP are analyzed in detail, and the interaction between various parts of the hybrid CRP is studied.<b>[Results]</b> The results show that the thrusting coefficient, the torque coefficient and the open water efficiency of the forward propeller decrease as the speed coefficient decreases due to the suction effect of the rear propeller on the forward propeller in the hybrid CRP, in which the trend is different from that in the single propeller. The thrusting coefficient, the torque coefficient and the open water efficiency of the rear propeller are different from those of the single podded propeller due to the blocking effect of pod and hub and the interference effect of unsteady wake of the forward propeller on the rear propeller. The calculated efficiency of the hybrid CRP is lower than that of the single propeller, and the energy absorption effect of the rear propeller on the forward propeller wake is not reflected. Therefore, the matching of the geometry parameters of the forward and rear propellers should be further considered in the design and study of the hybrid CRP.<b>[Conclusions]</b> This study results can provide reference for the optimal design and engineering application of the hybrid CRP.http://www.ship-research.com/EN/Y2019/V14/I2/30hybrid contra-rotating propeller(CRP)contra-rotating propellerpodded propulsionhydrodynamic characteristicscomputational fluid dynamics |
| spellingShingle | Zeng Wang Li Ye Qin Jiangtao Numerical study on hydrodynamic characteristics of hybrid contra-rotating propeller Zhongguo Jianchuan Yanjiu hybrid contra-rotating propeller(CRP) contra-rotating propeller podded propulsion hydrodynamic characteristics computational fluid dynamics |
| title | Numerical study on hydrodynamic characteristics of hybrid contra-rotating propeller |
| title_full | Numerical study on hydrodynamic characteristics of hybrid contra-rotating propeller |
| title_fullStr | Numerical study on hydrodynamic characteristics of hybrid contra-rotating propeller |
| title_full_unstemmed | Numerical study on hydrodynamic characteristics of hybrid contra-rotating propeller |
| title_short | Numerical study on hydrodynamic characteristics of hybrid contra-rotating propeller |
| title_sort | numerical study on hydrodynamic characteristics of hybrid contra rotating propeller |
| topic | hybrid contra-rotating propeller(CRP) contra-rotating propeller podded propulsion hydrodynamic characteristics computational fluid dynamics |
| url | http://www.ship-research.com/EN/Y2019/V14/I2/30 |
| work_keys_str_mv | AT zengwang numericalstudyonhydrodynamiccharacteristicsofhybridcontrarotatingpropeller AT liye numericalstudyonhydrodynamiccharacteristicsofhybridcontrarotatingpropeller AT qinjiangtao numericalstudyonhydrodynamiccharacteristicsofhybridcontrarotatingpropeller |