INVESTIGATION ABOUT THE HYDRODYNAMIC COUPLING CHARACTERISTICS OF CONTRA-ROTATING AZIMUTH PROPULSOR
A numerical study is conducted to determine the hydrodynamic coupling characteristics of a contra-rotating azimuth propulsor (CRAP) in open-water conditions. The detached-eddy simulation (DES) method is utilized to run simulations. A grid verification is conducted and the numerical results are valid...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Faculty of Mechanical Engineering and Naval Architecture
2022-01-01
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| Series: | Brodogradnja |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/412256 |
| _version_ | 1811185732238180352 |
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| author | Lixun Hou Qingcai Wang |
| author_facet | Lixun Hou Qingcai Wang |
| author_sort | Lixun Hou |
| collection | DOAJ |
| description | A numerical study is conducted to determine the hydrodynamic coupling characteristics of a contra-rotating azimuth propulsor (CRAP) in open-water conditions. The detached-eddy simulation (DES) method is utilized to run simulations. A grid verification is conducted and the numerical results are validated based on a puller-type podded propeller. The hydrodynamic forces (i.e., thrusts and torques) are in accordance with the experimental data. The validated numerical method is utilized for subsequent CRAP simulations. The hydrodynamic performance and hydrodynamic coupling characteristics of CRAP are quantitatively analyzed according to forward propeller (FP), rear propeller (RP), and pod unit (PU) indicators with special focus on the hydrodynamic forces and the corresponding unsteadiness. PU appears to have essentially the same effect on the hydrodynamic performance of FP and RP. RP has a weak effect on the hydrodynamic performance of FP, while FP intensely affects that of RP. In general, the CRAP unsteadiness is dominated by RP, especially under heavy loading conditions. |
| first_indexed | 2024-04-11T13:34:12Z |
| format | Article |
| id | doaj.art-52964aaceead4797ae233c679eaad85a |
| institution | Directory Open Access Journal |
| issn | 0007-215X 1845-5859 |
| language | English |
| last_indexed | 2024-04-11T13:34:12Z |
| publishDate | 2022-01-01 |
| publisher | Faculty of Mechanical Engineering and Naval Architecture |
| record_format | Article |
| series | Brodogradnja |
| spelling | doaj.art-52964aaceead4797ae233c679eaad85a2022-12-22T04:21:36ZengFaculty of Mechanical Engineering and Naval ArchitectureBrodogradnja0007-215X1845-58592022-01-017347910510.21278/brod73405270INVESTIGATION ABOUT THE HYDRODYNAMIC COUPLING CHARACTERISTICS OF CONTRA-ROTATING AZIMUTH PROPULSORLixun Hou0Qingcai Wang1Dalian Maritime University, School of Naval Architecture and Ocean EngineeringDalian Maritime University, School of Naval Architecture and Ocean EngineeringA numerical study is conducted to determine the hydrodynamic coupling characteristics of a contra-rotating azimuth propulsor (CRAP) in open-water conditions. The detached-eddy simulation (DES) method is utilized to run simulations. A grid verification is conducted and the numerical results are validated based on a puller-type podded propeller. The hydrodynamic forces (i.e., thrusts and torques) are in accordance with the experimental data. The validated numerical method is utilized for subsequent CRAP simulations. The hydrodynamic performance and hydrodynamic coupling characteristics of CRAP are quantitatively analyzed according to forward propeller (FP), rear propeller (RP), and pod unit (PU) indicators with special focus on the hydrodynamic forces and the corresponding unsteadiness. PU appears to have essentially the same effect on the hydrodynamic performance of FP and RP. RP has a weak effect on the hydrodynamic performance of FP, while FP intensely affects that of RP. In general, the CRAP unsteadiness is dominated by RP, especially under heavy loading conditions.https://hrcak.srce.hr/file/412256crapdetached eddy simulationhydrodynamic performanceunsteadinessvortex structure |
| spellingShingle | Lixun Hou Qingcai Wang INVESTIGATION ABOUT THE HYDRODYNAMIC COUPLING CHARACTERISTICS OF CONTRA-ROTATING AZIMUTH PROPULSOR Brodogradnja crap detached eddy simulation hydrodynamic performance unsteadiness vortex structure |
| title | INVESTIGATION ABOUT THE HYDRODYNAMIC COUPLING CHARACTERISTICS OF CONTRA-ROTATING AZIMUTH PROPULSOR |
| title_full | INVESTIGATION ABOUT THE HYDRODYNAMIC COUPLING CHARACTERISTICS OF CONTRA-ROTATING AZIMUTH PROPULSOR |
| title_fullStr | INVESTIGATION ABOUT THE HYDRODYNAMIC COUPLING CHARACTERISTICS OF CONTRA-ROTATING AZIMUTH PROPULSOR |
| title_full_unstemmed | INVESTIGATION ABOUT THE HYDRODYNAMIC COUPLING CHARACTERISTICS OF CONTRA-ROTATING AZIMUTH PROPULSOR |
| title_short | INVESTIGATION ABOUT THE HYDRODYNAMIC COUPLING CHARACTERISTICS OF CONTRA-ROTATING AZIMUTH PROPULSOR |
| title_sort | investigation about the hydrodynamic coupling characteristics of contra rotating azimuth propulsor |
| topic | crap detached eddy simulation hydrodynamic performance unsteadiness vortex structure |
| url | https://hrcak.srce.hr/file/412256 |
| work_keys_str_mv | AT lixunhou investigationaboutthehydrodynamiccouplingcharacteristicsofcontrarotatingazimuthpropulsor AT qingcaiwang investigationaboutthehydrodynamiccouplingcharacteristicsofcontrarotatingazimuthpropulsor |