서지주요정보
실린더에 분사된 층류확산화염의 불안정성에 관한 실험적 연구 = An experimental study on the instability of laminar diffusion flames impinging on a cylinder
서명 / 저자 실린더에 분사된 층류확산화염의 불안정성에 관한 실험적 연구 = An experimental study on the instability of laminar diffusion flames impinging on a cylinder / 윤영석.
저자명 윤영석 ; Yoon, Young-Seok
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8007639

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 97059

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Experimental studies were carried out on the instability of laminar-jet diffusion flames impinging on a cylinder. This instability implies the oscillation of flames near the stagnation point, where behaviors of flames are divided into three according to the distance from nozzle exit to the cylinder, impingement length(L). As impingement length increases, flames under the cylinder become stable first, unstable next and stable again. To investigate the characteristics of the instability, the frequency of the oscillation was measured and planar visualization was conducted. It is shown that the oscillation frequency depends on impingement length, cylinder diameter, nozzle width and nozzle exit velocity. Self-sustained oscillations of impinging free shear layers at non-reactive flow fields was investigated and compared with oscillations of flames. Also, it is visualized that the cylinder inserted into flames has an effect on the amount of smoke production according to impingement length.

서지기타정보

서지기타정보
청구기호 {MME 97059
형태사항 v, 38 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Young-Seok Yoon
지도교수의 한글표기 : 신현동
지도교수의 영문표기 : Hyun-Dong Shin
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 20-21
주제 층류확산화염
충돌화염
불안정성
진동
슬릿형 노즐
Laminar diffusion flame
Impinging flame
Instability
Oscillation
Slit nozzle
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