한국연소학회:학술대회논문집
- 한국연소학회 2012년도 제44회 KOSCO SYMPOSIUM 초록집
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- Pages.77-78
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- 2012
모형 연소실에서 분사기 연소 안정성 평가에 관한 실험적 연구
A Experimental Study on Combustion-Stability Rating in a Subscale Chamber
초록
To predict combustion instability in actual full-scale combustion chamber of rocket engines, air-injection test is proposed with scaling techniques. From the data, damping factors have been obtained as a function of hydraulic parameter and the data give us instability map. Two instability regions are presented and it is found that they coincide reasonably with them from hot-fire test with full-scale flow rates. Accordingly, the proposed approach can be applied cost-effectively to stability rating of jet injectors when mixing of fuel and oxidizer jets is the dominant process in instability triggering.