서지주요정보
단일 와환 확산 화염에 관한 실험적 연구 = An experimental study on the single vortex ring diffusion flame
서명 / 저자 단일 와환 확산 화염에 관한 실험적 연구 = An experimental study on the single vortex ring diffusion flame / 이대근.
저자명 이대근 ; Lee, Dae-Keun
발행사항 [대전 : 한국과학기술원, 1998].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8009123

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 98090

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The interaction of a single vortex ring with non-premixed flame was experimentally studied. A single vortex ring of gaseous fuel generated through a round nozzle was ignited by the residual flame sustained at the nozzle tip after fuel shut-off and visualized to study the phenomena occurring at various conditions by Schlieren and scattering techniques. Production of initial circulation of a non-reacting vortex ring was measured to clearly define the initial conditions. The boundaries of regime of the flame extinction, which occurs due to the excessive strain at the stagnation point, were mapped by the initial conditions. Tip propagating velocity and lateral width of the reacting or non-reacting cases were measured to see the dependency of the behavior of vortex rings on the governing parameters and the buoyancy effects on the vortex rings. Buoyancy increased the circulation of a vortex in upward case, while decreased in downward case. Temperature signal taken from thermocouple showed the slow entrainment to the core region of vortex ring flame. Flame roll-up seemed not to occur in this combustion field, different from other studies of numerical analysis.

서지기타정보

서지기타정보
청구기호 {MME 98090
형태사항 vii, 56 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Dae-Keun Lee
지도교수의 한글표기 : 신현동
지도교수의 영문표기 : Hyun-Dong Shin
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 30-31
주제 와환
확산 화염
부력
화염 말림
온도
Vortex ring
Diffusion flame
Buoyancy
Flame roll-up
Temperature
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