복사 열손실을 받는 대향류 확산화염의 맥동 불안정성의 비선형 거동

다국어 초록 (Multilingual Abstract)

Nonlinear dynamics of pulsating instability in radiating counterflow diffusion flames is numerically investigated by imposing Damkohler number perturbation. Stable limit-cycle solutions occur in small ranges of Damkohler numbers past bifurcation point of instability. Period doubling cascade and chaotic behaviors appear just before dynamic extinction occurs. Nonlinear dynamics is also studied when large disturbances are imposed to flames. For weak steady flames, the dynamic extinction range shrinks as the magnitudes of disturbances are increased. However, strong steady flames can overcome relatively large disturbances, thereby the dynamic extinction range extending. Stable limit-cycle behaviors reappears prior to dynamic extinction when the steady flames are strong enough.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 지배방정식 및 해석방법
• 3. 결과 및 검토
• 4. 결론
• 후기
• 참고문헌

참고문헌 (Reference)

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7 J. S. Kim, "Linear analysis of diffusional-thermal instability in diffusion flames with Lewis numbers close to unity" 1 : 13-40, 1997

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13 Law, C. K., "Combustion Physics" Cambridge University Press 2006