한국연소학회:학술대회논문집
- 한국연소학회 2007년도 제34회 KOSCO SYMPOSIUM 논문집
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- Pages.31-36
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- 2007
공동 내부로의 평행분사방법을 이용한 초음속 연소의 실험적 연구
Experimental Study on Supersonic Combustion with Parallel Fuel Injection Method in the Cavity
- Jeong, Eun-Ju ;
- Jeung, In-Seuck ;
- O'Byrn, Sean (Australian Defence Force Academy, Australia) ;
- Houwing, A.F.P (Australian National University, Australia)
- 발행 : 2007.05.04
초록
The supersonic combustion experiments are carried out using T3 free-piston shock tunnel. Hydrogen Fuel is injected in the cavity parallel with air(or nitrogen fuel) flow. The equivalence ratios in this study are 0.132 and 0.447. Experimental measurements use OH-PLIF near the cavity and pressures in the combustor. For parallel fuel injection case, direct fuel add into cavity leads to increase of cavity pressure. And Flame exists just near the bottom wall for low equivalent ratio. There is no flame in the cavity because of no mixing in it. Compared to the inclined fuel injection, ignition delay length is longer for low equivalence ratio in both case. OH distribution is not a single line but a repeatable fluctuation flame structure by turbulence. Pressure distributions have nothing to do with the fuel injection position.