Structural Designing of Supersonic Swirling Devices Based on Computational Fluid Dynamics Theory
The supersonic swirling device is a new apparatus that can be used for natural-gas liquefaction. The structure of the supersonic swirling device has an important impact on the liquefaction efficiency. Therefore, this study presents a structural design method for supersonic cyclones based on CFD theo...
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MDPI AG
2024-12-01
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| author | Qian Huang Huirong Huang Xueyuan Long Yuan Tian Jiang Meng |
| author_facet | Qian Huang Huirong Huang Xueyuan Long Yuan Tian Jiang Meng |
| author_sort | Qian Huang |
| collection | DOAJ |
| description | The supersonic swirling device is a new apparatus that can be used for natural-gas liquefaction. The structure of the supersonic swirling device has an important impact on the liquefaction efficiency. Therefore, this study presents a structural design method for supersonic cyclones based on CFD theory. Using the production parameters of a liquefied natural gas (LNG) peak-shaving station as the study case, a detailed design and design comparison of each part of the supersonic swirling separator are carried out. An optimum LNG supersonic swirling separator design was obtained. To ensure that the designed supersonic swirling separator achieved better liquefaction effectiveness, it was ascertained that no large shockwaves were generated in the de Laval nozzle, the pressure loss on the swirler was small, and the swirler was able to produce a large centripetal acceleration. The opening angle of the diffuser and the length of the straight tube were designed considering the location at which normal shockwaves were generated. The location at which shockwaves are generated and the friction effect are important parameters that determine the gap size. With this design guidance, the optimal structural dimensions of the supersonic swirling device for a given processing capacity were determined as follows: a swirler with six vanes and an 8 mm wide channel; a 10D-long straight tube, an opening angle of 20° between the straight tube and the divergent section, and a gap size of 2 mm. Compared with “Twister II”, the new device has better liquefaction efficiency. |
| format | Article |
| id | doaj-art-e5083acd90454621b54c6cbb302f2a7b |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-e5083acd90454621b54c6cbb302f2a7b2025-08-20T02:36:08ZengMDPI AGApplied Sciences2076-34172024-12-0115115110.3390/app15010151Structural Designing of Supersonic Swirling Devices Based on Computational Fluid Dynamics TheoryQian Huang0Huirong Huang1Xueyuan Long2Yuan Tian3Jiang Meng4School of Petroleum Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Petroleum Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Safety Science and Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Petroleum Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Petroleum Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaThe supersonic swirling device is a new apparatus that can be used for natural-gas liquefaction. The structure of the supersonic swirling device has an important impact on the liquefaction efficiency. Therefore, this study presents a structural design method for supersonic cyclones based on CFD theory. Using the production parameters of a liquefied natural gas (LNG) peak-shaving station as the study case, a detailed design and design comparison of each part of the supersonic swirling separator are carried out. An optimum LNG supersonic swirling separator design was obtained. To ensure that the designed supersonic swirling separator achieved better liquefaction effectiveness, it was ascertained that no large shockwaves were generated in the de Laval nozzle, the pressure loss on the swirler was small, and the swirler was able to produce a large centripetal acceleration. The opening angle of the diffuser and the length of the straight tube were designed considering the location at which normal shockwaves were generated. The location at which shockwaves are generated and the friction effect are important parameters that determine the gap size. With this design guidance, the optimal structural dimensions of the supersonic swirling device for a given processing capacity were determined as follows: a swirler with six vanes and an 8 mm wide channel; a 10D-long straight tube, an opening angle of 20° between the straight tube and the divergent section, and a gap size of 2 mm. Compared with “Twister II”, the new device has better liquefaction efficiency.https://www.mdpi.com/2076-3417/15/1/151natural gassupersonic swirl separationstructural designnumerical simulation |
| spellingShingle | Qian Huang Huirong Huang Xueyuan Long Yuan Tian Jiang Meng Structural Designing of Supersonic Swirling Devices Based on Computational Fluid Dynamics Theory Applied Sciences natural gas supersonic swirl separation structural design numerical simulation |
| title | Structural Designing of Supersonic Swirling Devices Based on Computational Fluid Dynamics Theory |
| title_full | Structural Designing of Supersonic Swirling Devices Based on Computational Fluid Dynamics Theory |
| title_fullStr | Structural Designing of Supersonic Swirling Devices Based on Computational Fluid Dynamics Theory |
| title_full_unstemmed | Structural Designing of Supersonic Swirling Devices Based on Computational Fluid Dynamics Theory |
| title_short | Structural Designing of Supersonic Swirling Devices Based on Computational Fluid Dynamics Theory |
| title_sort | structural designing of supersonic swirling devices based on computational fluid dynamics theory |
| topic | natural gas supersonic swirl separation structural design numerical simulation |
| url | https://www.mdpi.com/2076-3417/15/1/151 |
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