서지주요정보
연소 가스-공기의 이차원 혼합 영역에서의 Coherent 구조 생성특성에 관한 연구 = A study on the coherent structure formation in the mixing layer between combustion gas and air
서명 / 저자 연소 가스-공기의 이차원 혼합 영역에서의 Coherent 구조 생성특성에 관한 연구 = A study on the coherent structure formation in the mixing layer between combustion gas and air / 한태식.
저자명 한태식 ; Han, Tae-Seek
발행사항 [서울 : 한국과학기술원, 1984].
Online Access 원문보기 원문인쇄

소장정보

등록번호

4103007

소장위치/청구기호

학술문화관(문화관) 보존서고

MAE 8417

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

An experimental investigation on the coherent structure formation in the 2-dimensional mixing layer between combustion gas and air has been conducted. In order to study the effect of initial conditions on the formation of coherent structure, a trip wire was placed at the nozzle exit. Velocities of combustion gas and air are 7.0 mps and 6.6 mps respectively. Reynolds number based on the down stream distance and the air velocity is order of $10^4$. Velocity measurements were accomplished by utilizing laser Doppler velocimeter and molar concentration was measured using gaschromatograph. Flow visualizations were performed by the shadowgraph method. Certain conclusions as to the mixing layer can be made based upon the results of the current study. These conclusions include: 1. The laminar instability predominates in the near region of the mixing layer of the present study. 2. When tripwire was placed at a certain region of nozzle exit, the coherent structure was collapsed. This may be due to the variation of mean velocity profile resulted from the wake effect of the wire. 3. In case the tripwire is placed, the diffusion of heat and mass may be more active.

서지기타정보

서지기타정보
청구기호 {MAE 8417
형태사항 vi, 73 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Tae-Seek Han
지도교수의 한글표기 : 신현동
지도교수의 영문표기 : Hyun-Dong Shin
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 67-71
주제 Combustion --Research.
Photography, Shadowgraph.
Air flow.
연소 가스. --과학기술용어시소러스
연소 생성물. --과학기술용어시소러스
연소 특성. --과학기술용어시소러스
새도그래프. --과학기술용어시소러스
Combustion gases.
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