서지주요정보
난류 열대류에 대한 실험적 연구 = Experimental study of turbulent thermal convection
서명 / 저자 난류 열대류에 대한 실험적 연구 = Experimental study of turbulent thermal convection / 정재욱.
저자명 정재욱 ; Cheong, Jae-Wook
발행사항 [대전 : 한국과학기술원, 1992].
Online Access 제한공개(로그인 후 원문보기 가능)원문

소장정보

등록번호

8002759

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 92046

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

리뷰정보

초록정보

Turbulence in thermal convection has been investigated experimentally in a 1.0×1.0㎡ variable-height, closed convection chamber. The experiment was performed with air(Pr = 0.71) over the range $1\times10^6$<Ra<$1\times10^8$. Based on the statistical homogeneity in horizontal planes, vertical distributions of time mean temperature and its r.m.s. fluctuations were measured using thermocouple sensors of 25㎛ thickness. Mean temperature and r.m.s fluctuation profiles were compared with previous experiments. Mean temperature profiles are in good agreement with their results but the level of the r.m.s fluctuations are about 30% lower than their data. Mean temperature and its gradient fields were correlated well in terms of Chung's conduction layer scales, which means that thermal boundary layer has the charateristics of a layered structure. The heat transfer correlation obtained through the present experiments are Nu = 0.152 $Ra^{0.286}$, which agrees well with previous measurements.

서지기타정보

서지기타정보
청구기호 {MME 92046
형태사항 v, 45 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jae-Wook Cheong
지도교수의 한글표기 : 정명균
지도교수의 영문표기 : Myung-Kyoon Chung
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 25-28
주제 Heat --Convection.
Turbulence boundary layer.
Heat --Conduction.
대류 열전달. --과학기술용어시소러스
난류 열전달. --과학기술용어시소러스
열전대. --과학기술용어시소러스
온도 경계층. --과학기술용어시소러스
Turbulence.
QR CODE qr code