레이저 공동 점화 방식을 이용한 예혼합기 연소 특성 = Combustion characteristics of Premixed Flames Using Laser-Induced Cavety Ignition

다국어 초록 (Multilingual Abstract)

In this study, a new type of laser-induced ignition was developed. Without focusing laser beam, it was possible to ignite combustible mixtures by reducing the laser beam diameter to a small value and directing that beam into a small conical cavity. Shadowgraphs for the early stages of combustion process showed that a hot gas jet is ejecting from the cavity, especially when burning lean mixture. After a very short time, the hot gas jet had finished issuing and the flame behavior is quite similar to flame propagation initiated by a conventional spark plug. This type of ignition exhibits more rapid and a higher maximum pressure rise than center ignition with a significant decrease in the combustion duration. Also, the combustion process with this type of ignition was simulated using a part of KIVA-II and good agreement between experimental and calculated results of temperature distribution was obtained.<br/>

목차 (Table of Contents)

• ABSTRACT
  
• 1.서론
  
• 2.실험 장치 및 방법
  
• 3.수치 해석 모델링
  
• 4.실험 결과 및 방법
  
• 5.결론
  
• 6.참고문헌