A numerical study on the optimization of the slit shape of a jet injection propeller
The shape of the slit that injects the jet from the surface of the propeller was optimized through numerical computations. The high-pressure drop on the propeller surface caused by jet injection could be improved by modifying the hydrofoil geometry of the propeller. As the cover length increased and...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | International Journal of Naval Architecture and Ocean Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2092678223000675 |
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| author | Jun-Hee Lee Ju-Han Lee Myeong-Min Kim Dohan Oh Kwang-Jun Paik |
| author_facet | Jun-Hee Lee Ju-Han Lee Myeong-Min Kim Dohan Oh Kwang-Jun Paik |
| author_sort | Jun-Hee Lee |
| collection | DOAJ |
| description | The shape of the slit that injects the jet from the surface of the propeller was optimized through numerical computations. The high-pressure drop on the propeller surface caused by jet injection could be improved by modifying the hydrofoil geometry of the propeller. As the cover length increased and the slit was located at the center of the propeller, the volume of jets leading to the trailing edge increased, and the propulsion performance was improved. As the height of the slit increased, the thrust increased due to the Coanda effect, and the torque decreased because of the thrust of the jet. The jet injection pattern differed according to the area of the slit and tunnel, which caused a difference in the propeller performance. The jet pattern changed according to the area of the slit and tunnel, leading to a change in propeller performance. It was effective in improving the efficiency by injecting from as wide an area as possible, and the efficiency was improved by approximately 2 % considering the pump efficiency through optimization of the slit shape. |
| format | Article |
| id | doaj-art-80da191fb0d349f9a5fb1fcfe2d95657 |
| institution | Kabale University |
| issn | 2092-6782 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Naval Architecture and Ocean Engineering |
| spelling | doaj-art-80da191fb0d349f9a5fb1fcfe2d956572024-12-25T04:21:03ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822024-01-0116100578A numerical study on the optimization of the slit shape of a jet injection propellerJun-Hee Lee0Ju-Han Lee1Myeong-Min Kim2Dohan Oh3Kwang-Jun Paik4Department of Naval Architecture and Ocean Engineering, Inha University, Incheon, Republic of KoreaDepartment of Naval Architecture and Ocean Engineering, Inha University, Incheon, Republic of KoreaDepartment of Naval Architecture and Ocean Engineering, Inha University, Incheon, Republic of KoreaDepartment of Naval Architecture and Ocean Engineering, Hongik University, Sejong, Republic of KoreaDepartment of Naval Architecture and Ocean Engineering, Inha University, Incheon, Republic of Korea; Corresponding author.The shape of the slit that injects the jet from the surface of the propeller was optimized through numerical computations. The high-pressure drop on the propeller surface caused by jet injection could be improved by modifying the hydrofoil geometry of the propeller. As the cover length increased and the slit was located at the center of the propeller, the volume of jets leading to the trailing edge increased, and the propulsion performance was improved. As the height of the slit increased, the thrust increased due to the Coanda effect, and the torque decreased because of the thrust of the jet. The jet injection pattern differed according to the area of the slit and tunnel, which caused a difference in the propeller performance. The jet pattern changed according to the area of the slit and tunnel, leading to a change in propeller performance. It was effective in improving the efficiency by injecting from as wide an area as possible, and the efficiency was improved by approximately 2 % considering the pump efficiency through optimization of the slit shape.http://www.sciencedirect.com/science/article/pii/S2092678223000675Coanda effectComputational Fluid Dynamics (CFD)Design optimizationPropeller performancePropeller efficiency |
| spellingShingle | Jun-Hee Lee Ju-Han Lee Myeong-Min Kim Dohan Oh Kwang-Jun Paik A numerical study on the optimization of the slit shape of a jet injection propeller International Journal of Naval Architecture and Ocean Engineering Coanda effect Computational Fluid Dynamics (CFD) Design optimization Propeller performance Propeller efficiency |
| title | A numerical study on the optimization of the slit shape of a jet injection propeller |
| title_full | A numerical study on the optimization of the slit shape of a jet injection propeller |
| title_fullStr | A numerical study on the optimization of the slit shape of a jet injection propeller |
| title_full_unstemmed | A numerical study on the optimization of the slit shape of a jet injection propeller |
| title_short | A numerical study on the optimization of the slit shape of a jet injection propeller |
| title_sort | numerical study on the optimization of the slit shape of a jet injection propeller |
| topic | Coanda effect Computational Fluid Dynamics (CFD) Design optimization Propeller performance Propeller efficiency |
| url | http://www.sciencedirect.com/science/article/pii/S2092678223000675 |
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