Numerical Study of Fluidic Thrust Vector Control Using Dual Throat Nozzle
Compared to a variety of mechanical vectoring nozzles, fluidic vectoring nozzles possess more research value nowadays. The dual throat nozzle is gradually developing into an outstanding technology to handle supersonic and hypersonic aircraft deflections. Three-dimensional, steady, compressible, and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Isfahan University of Technology
2021-01-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | http://jafmonline.net/JournalArchive/download?file_ID=54299&issue_ID=1010 |
| _version_ | 1818760491862851584 |
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| author | K. X. Wu T. H. Kim H. D. Kim |
| author_facet | K. X. Wu T. H. Kim H. D. Kim |
| author_sort | K. X. Wu |
| collection | DOAJ |
| description | Compared to a variety of mechanical vectoring nozzles, fluidic vectoring nozzles possess more research value nowadays. The dual throat nozzle is gradually developing into an outstanding technology to handle supersonic and hypersonic aircraft deflections. Three-dimensional, steady, compressible, and viscous flows in rectangular dual throat nozzles are numerically investigated by resolving Reynolds-averaged Navier-Stokes equations and shear stress transport k-omega turbulence model. Computational fluid dynamics results are verified against the existing experimental data, where a good consistency is gained. The impacts of nozzle pressure ratio, injection-to-mainstream momentum flux ratio, and setup angle of the slot injector on the systemic performance are examined. Useful conclusions are summarized for engineering designers. Firstly, pitching angles decline along with an increasing nozzle pressure ratio, while systemic thrust ratio and thrust efficiency increase. Secondly, thrust vector angles enlarge with an increase of the injection-to-mainstream momentum flux ratio, whereas both systemic thrust ratio and thrust efficiency decay. Finally, the setup angle of the slot injector impacts the systemic performance remarkably. Although the pitching angle for the setup angle of 120° is highest, comprehensive characteristics in terms of systemic thrust efficiency and systemic thrust ratio for the setup angle of 150° are more excellent. |
| first_indexed | 2024-12-18T06:59:28Z |
| format | Article |
| id | doaj.art-9450dbe3cbd547b08db97dd0299889fa |
| institution | Directory Open Access Journal |
| issn | 1735-3572 |
| language | English |
| last_indexed | 2024-12-18T06:59:28Z |
| publishDate | 2021-01-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-9450dbe3cbd547b08db97dd0299889fa2022-12-21T21:17:05ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35722021-01-011417387.Numerical Study of Fluidic Thrust Vector Control Using Dual Throat NozzleK. X. Wu0T. H. Kim1H. D. Kim2Mechanical Engineering, Andong National University, Andong, 760-749, South KoreaMechanical Engineering, Andong National University, Andong, 760-749, South KoreaMechanical Engineering, Andong National University, Andong, 760-749, South KoreaCompared to a variety of mechanical vectoring nozzles, fluidic vectoring nozzles possess more research value nowadays. The dual throat nozzle is gradually developing into an outstanding technology to handle supersonic and hypersonic aircraft deflections. Three-dimensional, steady, compressible, and viscous flows in rectangular dual throat nozzles are numerically investigated by resolving Reynolds-averaged Navier-Stokes equations and shear stress transport k-omega turbulence model. Computational fluid dynamics results are verified against the existing experimental data, where a good consistency is gained. The impacts of nozzle pressure ratio, injection-to-mainstream momentum flux ratio, and setup angle of the slot injector on the systemic performance are examined. Useful conclusions are summarized for engineering designers. Firstly, pitching angles decline along with an increasing nozzle pressure ratio, while systemic thrust ratio and thrust efficiency increase. Secondly, thrust vector angles enlarge with an increase of the injection-to-mainstream momentum flux ratio, whereas both systemic thrust ratio and thrust efficiency decay. Finally, the setup angle of the slot injector impacts the systemic performance remarkably. Although the pitching angle for the setup angle of 120° is highest, comprehensive characteristics in terms of systemic thrust efficiency and systemic thrust ratio for the setup angle of 150° are more excellent.http://jafmonline.net/JournalArchive/download?file_ID=54299&issue_ID=1010vector control; jet deflection; shock wave; compressible flow; internal flow. |
| spellingShingle | K. X. Wu T. H. Kim H. D. Kim Numerical Study of Fluidic Thrust Vector Control Using Dual Throat Nozzle Journal of Applied Fluid Mechanics vector control; jet deflection; shock wave; compressible flow; internal flow. |
| title | Numerical Study of Fluidic Thrust Vector Control Using Dual Throat Nozzle |
| title_full | Numerical Study of Fluidic Thrust Vector Control Using Dual Throat Nozzle |
| title_fullStr | Numerical Study of Fluidic Thrust Vector Control Using Dual Throat Nozzle |
| title_full_unstemmed | Numerical Study of Fluidic Thrust Vector Control Using Dual Throat Nozzle |
| title_short | Numerical Study of Fluidic Thrust Vector Control Using Dual Throat Nozzle |
| title_sort | numerical study of fluidic thrust vector control using dual throat nozzle |
| topic | vector control; jet deflection; shock wave; compressible flow; internal flow. |
| url | http://jafmonline.net/JournalArchive/download?file_ID=54299&issue_ID=1010 |
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