What is the importance of cavity based scramjet injection?
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Cavity-based injection in scramjet combustors is important for enhancing combustion performance and improving the overall efficiency of the engine. The use of cavity-based injections, such as angled and transverse injections, creates strong shock trains in the cavity region, leading to enhanced combustion of the fuel-air mixture . Additionally, cavity designs with wavy walls and additional cavities increase the stability of combustion by increasing the residence time of the airstream and creating more recirculation regions . The allocation of fuel injection between transverse injectors and the duct wall upstream of the cavity also affects combustion characteristics, with increased strut injection leading to improved thrust increment and specific impulse . Furthermore, multi-staged injection, including both strut and wall injections, enhances the wall pressure profile along the combustor without upstream propagation of pressure rise . Overall, cavity-based injection techniques play a crucial role in optimizing the performance of scramjet combustors by improving combustion efficiency and enhancing mixing of fuel and air.
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| Papers (3) | Insight |
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27 Citations | The cavity-based injection in a scramjet improves combustion performance and increases thrust increment and specific impulse. |
37 Citations | Cavity-based scramjet injection enhances combustion stability, increases pressure and temperature, and improves mixing and combustion efficiency. |
| Cavity-based injection in a scramjet combustor enhances combustion efficiency but also increases total pressure loss. |
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