The presence of downstream ramp on fuel mixing of the multi micro jets at supersonic cross flow |
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| Affiliation: | 1. Faculty of Mechanical Engineering, Opole University of Technology, Opole, 45758, Poland;2. Hongwei Institute of Innovative Design, Mianyang, Sichuan, 621000, China;3. Department of Mechanical & Aerospace Engineering, Institute of Infrastructure Technology Research and Management (IITRAM), Ahmedabad, Gujarat, 380026, India;4. Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia;5. Department of Physics, College of Science and Humanities in Al-Aflaj, Prince Sattam bin Abdulaziz University, Al-Aflaj, 11912, Saudi Arabia |
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| Abstract: | Development of the fuel injection system in combustion chamber is greatly important for the overall thrust efficiency of the high-speed vehicles. Current article developed a three-dimensional model to discover the reality of downstream ramp on fuel mixing of the multi-jet at Ma>1. FVM is hired to scrutinize the impact of injector types (3-lobe, circular and rectangular shape) on the mixing productivity of downstream ramp in combustion chamber. Besides, the effects of ramp angle on fuel mixing are also analysed. Fuel mixing mechanisms in the selected models are investigated by comparing the Ma contour and mixing zone. Comparisons of the circulation strength downstream of these models confirm that the 3-lobe nozzles is more efficient than other styles. Our comparison indicates that overall mixing productivity of the circular jet is more than other cases. |
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| Keywords: | Hydrogen jet Compressible flow Fuel mixing Injector type CFD Combustion chamber |
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