Unsteady Numerical Calculation of Oblique Submerged Jet
A water jet is a kind of high-speed dynamic fluid with high energy, which is widely used in the engineering field. In order to analyze the characteristics of the flow field and the change of law of the bottom impact pressure of the oblique submerged impinging jet at different times, its unsteady cha...
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| Format: | Article |
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MDPI AG
2020-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/18/4728 |
| _version_ | 1797554020722671616 |
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| author | Weixuan Jiao Di Zhang Chuan Wang Li Cheng Tao Wang |
| author_facet | Weixuan Jiao Di Zhang Chuan Wang Li Cheng Tao Wang |
| author_sort | Weixuan Jiao |
| collection | DOAJ |
| description | A water jet is a kind of high-speed dynamic fluid with high energy, which is widely used in the engineering field. In order to analyze the characteristics of the flow field and the change of law of the bottom impact pressure of the oblique submerged impinging jet at different times, its unsteady characteristics at different Reynolds numbers were studied by using the Wray–Agarwal (W-A) turbulence model. It can be seen from the results that in the process of jet movement, the pressure at the peak of velocity on the axis was the smallest, and the velocity, flow angle, and pressure distribution remain unchanged after a certain time. In the free jet region, the velocity, flow angle, and pressure remained unchanged. In the impingement region, the velocity and flow angle decreased rapidly, while the pressure increased rapidly. The maximum pressure coefficient of the impingement plate changed with time and was affected by the Reynolds number, but the distribution trend remained the same. In this paper, the characteristics of the flow field and the law of the impact pressure changing with time are described. |
| first_indexed | 2024-03-10T16:24:52Z |
| format | Article |
| id | doaj.art-cdc328ee1bdb4daa910441cedbd1cfa2 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T16:24:52Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-cdc328ee1bdb4daa910441cedbd1cfa22023-11-20T13:20:05ZengMDPI AGEnergies1996-10732020-09-011318472810.3390/en13184728Unsteady Numerical Calculation of Oblique Submerged JetWeixuan Jiao0Di Zhang1Chuan Wang2Li Cheng3Tao Wang4College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, ChinaCollege of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, ChinaCollege of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, ChinaCollege of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, ChinaKey Laboratory of Fluid and Power Machinery, Ministry of Education, School of Energy & Power Engineering, Xihua University, Chengdu 610039, ChinaA water jet is a kind of high-speed dynamic fluid with high energy, which is widely used in the engineering field. In order to analyze the characteristics of the flow field and the change of law of the bottom impact pressure of the oblique submerged impinging jet at different times, its unsteady characteristics at different Reynolds numbers were studied by using the Wray–Agarwal (W-A) turbulence model. It can be seen from the results that in the process of jet movement, the pressure at the peak of velocity on the axis was the smallest, and the velocity, flow angle, and pressure distribution remain unchanged after a certain time. In the free jet region, the velocity, flow angle, and pressure remained unchanged. In the impingement region, the velocity and flow angle decreased rapidly, while the pressure increased rapidly. The maximum pressure coefficient of the impingement plate changed with time and was affected by the Reynolds number, but the distribution trend remained the same. In this paper, the characteristics of the flow field and the law of the impact pressure changing with time are described.https://www.mdpi.com/1996-1073/13/18/4728unsteady flownumerical simulationsubmerged jet |
| spellingShingle | Weixuan Jiao Di Zhang Chuan Wang Li Cheng Tao Wang Unsteady Numerical Calculation of Oblique Submerged Jet Energies unsteady flow numerical simulation submerged jet |
| title | Unsteady Numerical Calculation of Oblique Submerged Jet |
| title_full | Unsteady Numerical Calculation of Oblique Submerged Jet |
| title_fullStr | Unsteady Numerical Calculation of Oblique Submerged Jet |
| title_full_unstemmed | Unsteady Numerical Calculation of Oblique Submerged Jet |
| title_short | Unsteady Numerical Calculation of Oblique Submerged Jet |
| title_sort | unsteady numerical calculation of oblique submerged jet |
| topic | unsteady flow numerical simulation submerged jet |
| url | https://www.mdpi.com/1996-1073/13/18/4728 |
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