Propeller ventilation and hydrodynamic performance based on numerical simulation
<b>Objectives</b> In order to explore the hazards of propeller ventilation and to prevent that during the ship design stage, a study of CFD numerical simulation is carried out.<b>Methods</b> The hydrodynamic performances of a propeller model with different immersion ratio and...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Editorial Office of Chinese Journal of Ship Research
2020-10-01
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| Series: | Zhongguo Jianchuan Yanjiu |
| Subjects: | |
| Online Access: | http://html.rhhz.net/ZGJCYJ/html/2020-5-96.htm |
| _version_ | 1819016164019273728 |
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| author | ZHANG Lei ZHOU Zhiyong ZHANG Yuxin HUANG Shaofeng |
| author_facet | ZHANG Lei ZHOU Zhiyong ZHANG Yuxin HUANG Shaofeng |
| author_sort | ZHANG Lei |
| collection | DOAJ |
| description | <b>Objectives</b> In order to explore the hazards of propeller ventilation and to prevent that during the ship design stage, a study of CFD numerical simulation is carried out.<b>Methods</b> The hydrodynamic performances of a propeller model with different immersion ratio and advance coefficients are calculated. The ventilation characteristics and the changes of propeller thrust and torque are analyzed. The changes of the non-constant loads of a blade are compared.<b>Results</b> The results show that, for the immersion ratio <i>h</i>/<i>D</i>=1.0, the propeller has no ventilation, and its thrust and torque also have no significant change. For 0.6≤<i>h</i>/<i>D</i><1.0, the propeller is affected by the free surface, and the thrust and torque have a certain reduction. For <i>h</i>/<i>D</i><0.6, especially at lower advance coefficients, the propeller has a significant ventilation phenomenon and see a large decrease in the thrust and torque.<b>Conclusions</b> The study shows that, it's possible the ventilation happens in small immersion ratios and at lower advance coefficients, accompanied with the thrust and torque descending rapidly and pulsing steeply. |
| first_indexed | 2024-12-21T02:43:16Z |
| format | Article |
| id | doaj.art-9f51dba5527f47a88644cd17965d701a |
| institution | Directory Open Access Journal |
| issn | 1673-3185 1673-3185 |
| language | English |
| last_indexed | 2024-12-21T02:43:16Z |
| publishDate | 2020-10-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-9f51dba5527f47a88644cd17965d701a2022-12-21T19:18:38ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31851673-31852020-10-0115596101,11310.19693/j.issn.1673-3185.01719Propeller ventilation and hydrodynamic performance based on numerical simulationZHANG LeiZHOU ZhiyongZHANG YuxinHUANG Shaofeng<b>Objectives</b> In order to explore the hazards of propeller ventilation and to prevent that during the ship design stage, a study of CFD numerical simulation is carried out.<b>Methods</b> The hydrodynamic performances of a propeller model with different immersion ratio and advance coefficients are calculated. The ventilation characteristics and the changes of propeller thrust and torque are analyzed. The changes of the non-constant loads of a blade are compared.<b>Results</b> The results show that, for the immersion ratio <i>h</i>/<i>D</i>=1.0, the propeller has no ventilation, and its thrust and torque also have no significant change. For 0.6≤<i>h</i>/<i>D</i><1.0, the propeller is affected by the free surface, and the thrust and torque have a certain reduction. For <i>h</i>/<i>D</i><0.6, especially at lower advance coefficients, the propeller has a significant ventilation phenomenon and see a large decrease in the thrust and torque.<b>Conclusions</b> The study shows that, it's possible the ventilation happens in small immersion ratios and at lower advance coefficients, accompanied with the thrust and torque descending rapidly and pulsing steeply.http://html.rhhz.net/ZGJCYJ/html/2020-5-96.htmpropellerventilation phenomenonnumerical simulationimmersion ratioadvance coefficientthrusttorque |
| spellingShingle | ZHANG Lei ZHOU Zhiyong ZHANG Yuxin HUANG Shaofeng Propeller ventilation and hydrodynamic performance based on numerical simulation Zhongguo Jianchuan Yanjiu propeller ventilation phenomenon numerical simulation immersion ratio advance coefficient thrust torque |
| title | Propeller ventilation and hydrodynamic performance based on numerical simulation |
| title_full | Propeller ventilation and hydrodynamic performance based on numerical simulation |
| title_fullStr | Propeller ventilation and hydrodynamic performance based on numerical simulation |
| title_full_unstemmed | Propeller ventilation and hydrodynamic performance based on numerical simulation |
| title_short | Propeller ventilation and hydrodynamic performance based on numerical simulation |
| title_sort | propeller ventilation and hydrodynamic performance based on numerical simulation |
| topic | propeller ventilation phenomenon numerical simulation immersion ratio advance coefficient thrust torque |
| url | http://html.rhhz.net/ZGJCYJ/html/2020-5-96.htm |
| work_keys_str_mv | AT zhanglei propellerventilationandhydrodynamicperformancebasedonnumericalsimulation AT zhouzhiyong propellerventilationandhydrodynamicperformancebasedonnumericalsimulation AT zhangyuxin propellerventilationandhydrodynamicperformancebasedonnumericalsimulation AT huangshaofeng propellerventilationandhydrodynamicperformancebasedonnumericalsimulation |