Hydrodynamic performance analysis of waterjet propulsor inlet duct
ObjectivesThe effects of the key parameters of the inlet duct of a waterjet propulsor on its hydrodynamic performance are studied, providing references for the design of waterjet propulsors. MethodsBased on STAR-CCM+ software, the influence of the axis height and inlet angle of a waterjet inlet duct...
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| Format: | Article |
| Language: | English |
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Editorial Office of Chinese Journal of Ship Research
2022-02-01
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| Series: | Zhongguo Jianchuan Yanjiu |
| Subjects: | |
| Online Access: | http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02269 |
| _version_ | 1818492533051752448 |
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| author | Jitao QIU Xiaohui YIN Renzhi WANG |
| author_facet | Jitao QIU Xiaohui YIN Renzhi WANG |
| author_sort | Jitao QIU |
| collection | DOAJ |
| description | ObjectivesThe effects of the key parameters of the inlet duct of a waterjet propulsor on its hydrodynamic performance are studied, providing references for the design of waterjet propulsors. MethodsBased on STAR-CCM+ software, the influence of the axis height and inlet angle of a waterjet inlet duct on its hydrodynamic performance under different intake velocity ratio (IVR) conditions is studied using steady Reynolds-averaged Navier-Stokes equations (RANS) numerical simulation. Numerical uncertainty analysis is carried out according to the international towing tank conference (ITTC) uncertainty analysis procedure. In this paper, the computational domain is discretized with hexahedral structured grids. The set of governing equations is closed using the Realizable k-ε two-layer turbulence model, and the discretization schemes are second-order accurate. The semi-implicit method for pressure linked equations (SIMPLE) algorithm is applied in the pressure-velocity coupling calculation. ResultsThe results show that the numerical uncertainty is less than 4%, indicating that the grids used in this paper yield well-converged and reliable numerical results. ConclusionsThe efficiency of the inlet duct is higher in the range of IVR = 0.7~1.1. For large IVR, the inlet angle should be reduced. For small IVR, the axis height can be appropriately increased to improve the homogeneity of flow at the exit of the inlet duct. |
| first_indexed | 2024-12-10T17:44:32Z |
| format | Article |
| id | doaj.art-28c925ffcd1841df9d70257b0ef6bad7 |
| institution | Directory Open Access Journal |
| issn | 1673-3185 |
| language | English |
| last_indexed | 2024-12-10T17:44:32Z |
| publishDate | 2022-02-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-28c925ffcd1841df9d70257b0ef6bad72022-12-22T01:39:16ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852022-02-01171111710.19693/j.issn.1673-3185.02269ZG2269Hydrodynamic performance analysis of waterjet propulsor inlet ductJitao QIU0Xiaohui YIN1Renzhi WANG2Science and Technology of Water Jet Propulsion Laboratory, Shanghai 200011, ChinaScience and Technology of Water Jet Propulsion Laboratory, Shanghai 200011, ChinaMarine Design and Research Institute of China, Shanghai 200011, ChinaObjectivesThe effects of the key parameters of the inlet duct of a waterjet propulsor on its hydrodynamic performance are studied, providing references for the design of waterjet propulsors. MethodsBased on STAR-CCM+ software, the influence of the axis height and inlet angle of a waterjet inlet duct on its hydrodynamic performance under different intake velocity ratio (IVR) conditions is studied using steady Reynolds-averaged Navier-Stokes equations (RANS) numerical simulation. Numerical uncertainty analysis is carried out according to the international towing tank conference (ITTC) uncertainty analysis procedure. In this paper, the computational domain is discretized with hexahedral structured grids. The set of governing equations is closed using the Realizable k-ε two-layer turbulence model, and the discretization schemes are second-order accurate. The semi-implicit method for pressure linked equations (SIMPLE) algorithm is applied in the pressure-velocity coupling calculation. ResultsThe results show that the numerical uncertainty is less than 4%, indicating that the grids used in this paper yield well-converged and reliable numerical results. ConclusionsThe efficiency of the inlet duct is higher in the range of IVR = 0.7~1.1. For large IVR, the inlet angle should be reduced. For small IVR, the axis height can be appropriately increased to improve the homogeneity of flow at the exit of the inlet duct.http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02269waterjetinlet ductnumerical uncertaintyhydrodynamic performance |
| spellingShingle | Jitao QIU Xiaohui YIN Renzhi WANG Hydrodynamic performance analysis of waterjet propulsor inlet duct Zhongguo Jianchuan Yanjiu waterjet inlet duct numerical uncertainty hydrodynamic performance |
| title | Hydrodynamic performance analysis of waterjet propulsor inlet duct |
| title_full | Hydrodynamic performance analysis of waterjet propulsor inlet duct |
| title_fullStr | Hydrodynamic performance analysis of waterjet propulsor inlet duct |
| title_full_unstemmed | Hydrodynamic performance analysis of waterjet propulsor inlet duct |
| title_short | Hydrodynamic performance analysis of waterjet propulsor inlet duct |
| title_sort | hydrodynamic performance analysis of waterjet propulsor inlet duct |
| topic | waterjet inlet duct numerical uncertainty hydrodynamic performance |
| url | http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02269 |
| work_keys_str_mv | AT jitaoqiu hydrodynamicperformanceanalysisofwaterjetpropulsorinletduct AT xiaohuiyin hydrodynamicperformanceanalysisofwaterjetpropulsorinletduct AT renzhiwang hydrodynamicperformanceanalysisofwaterjetpropulsorinletduct |