Usage of double injector for efficient mixing of the fuel behind the ramp injector at supersonic combustion chamber
Abstract This investigation presents extensive computational analyses of the compressible flow near ramp injector with double circular injectors at supersonic combustor of scramjet engine. Comparison of the fuel mixing and fuel jet penetration of hydrogen jet are done for two injector configurations...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-85215-8 |
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| author | Ihab Omar Mohamed R. El-Sharkawy Rifaqat Ali Pradeep Kumar Singh Husam Rajab Mohsen Ahmed Naim Ben Ali Wajdi Rajhi Lotfi Ben Said S. Arman Abodollahi |
| author_facet | Ihab Omar Mohamed R. El-Sharkawy Rifaqat Ali Pradeep Kumar Singh Husam Rajab Mohsen Ahmed Naim Ben Ali Wajdi Rajhi Lotfi Ben Said S. Arman Abodollahi |
| author_sort | Ihab Omar |
| collection | DOAJ |
| description | Abstract This investigation presents extensive computational analyses of the compressible flow near ramp injector with double circular injectors at supersonic combustor of scramjet engine. Comparison of the fuel mixing and fuel jet penetration of hydrogen jet are done for two injector configurations at free stream Mach number of 2. The simulation of the supersonic flow near ramp injector is done via solving RANS equations with computational fluid dynamic technique. Effect of nozzle space on the fuel distribution and mixing mechanism has been investigated. Besides, interface of the free stream and jet behind the ramp are fully analyzed. Comparison of the circulation strength behind these two configurations indicates that increasing of the jet space led to higher circulation strength. However, the mixing efficiency of the model with low jet space is higher since the interaction of these two jet is key factor for diffusion and mixing inside the combustion chamber. |
| format | Article |
| id | doaj-art-85f4fb8c40264feb9558c4962f1ed04e |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-85f4fb8c40264feb9558c4962f1ed04e2025-01-12T12:17:53ZengNature PortfolioScientific Reports2045-23222025-01-0115111110.1038/s41598-025-85215-8Usage of double injector for efficient mixing of the fuel behind the ramp injector at supersonic combustion chamberIhab Omar0Mohamed R. El-Sharkawy1Rifaqat Ali2Pradeep Kumar Singh3Husam Rajab4Mohsen Ahmed5Naim Ben Ali6Wajdi Rajhi7Lotfi Ben Said8S. Arman Abodollahi9Air Conditioning Engineering Department, Faculty of Engineering, Warith Al-Anbiyaa UniversityEngineering of Technical Mechanical Power Department, Al-Amarah University CollegeDepartment of Mathematics, Applied College in Mohayil Asir, King Khalid UniversityDepartment of Mechanical Engineering, Institute of Engineering and Technology, GLA UniversityCollege of Engineering, Department of Mechanical Engineering, Najran UniversityImam Abdulrahman Bin Faisal UniversityDepartment of Industrial Engineering, College of Engineering, University of Ha’ilDepartment of Mechanical Engineering, College of Engineering, University of Ha’ilDepartment of Mechanical Engineering, College of Engineering, University of Ha’ilFaculty of Mechanical Engineering, University of TabrizAbstract This investigation presents extensive computational analyses of the compressible flow near ramp injector with double circular injectors at supersonic combustor of scramjet engine. Comparison of the fuel mixing and fuel jet penetration of hydrogen jet are done for two injector configurations at free stream Mach number of 2. The simulation of the supersonic flow near ramp injector is done via solving RANS equations with computational fluid dynamic technique. Effect of nozzle space on the fuel distribution and mixing mechanism has been investigated. Besides, interface of the free stream and jet behind the ramp are fully analyzed. Comparison of the circulation strength behind these two configurations indicates that increasing of the jet space led to higher circulation strength. However, the mixing efficiency of the model with low jet space is higher since the interaction of these two jet is key factor for diffusion and mixing inside the combustion chamber.https://doi.org/10.1038/s41598-025-85215-8CFDCombustion chamberHydrogen jetSupersonic flowStrut |
| spellingShingle | Ihab Omar Mohamed R. El-Sharkawy Rifaqat Ali Pradeep Kumar Singh Husam Rajab Mohsen Ahmed Naim Ben Ali Wajdi Rajhi Lotfi Ben Said S. Arman Abodollahi Usage of double injector for efficient mixing of the fuel behind the ramp injector at supersonic combustion chamber Scientific Reports CFD Combustion chamber Hydrogen jet Supersonic flow Strut |
| title | Usage of double injector for efficient mixing of the fuel behind the ramp injector at supersonic combustion chamber |
| title_full | Usage of double injector for efficient mixing of the fuel behind the ramp injector at supersonic combustion chamber |
| title_fullStr | Usage of double injector for efficient mixing of the fuel behind the ramp injector at supersonic combustion chamber |
| title_full_unstemmed | Usage of double injector for efficient mixing of the fuel behind the ramp injector at supersonic combustion chamber |
| title_short | Usage of double injector for efficient mixing of the fuel behind the ramp injector at supersonic combustion chamber |
| title_sort | usage of double injector for efficient mixing of the fuel behind the ramp injector at supersonic combustion chamber |
| topic | CFD Combustion chamber Hydrogen jet Supersonic flow Strut |
| url | https://doi.org/10.1038/s41598-025-85215-8 |
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