서지주요정보
Natural convection heat transfer in the annulus between horizontal circular cylinders = 두 수평원관 사이에서의 자연대류 열전달에 관한 이론적 연구
서명 / 저자 Natural convection heat transfer in the annulus between horizontal circular cylinders = 두 수평원관 사이에서의 자연대류 열전달에 관한 이론적 연구 / Kwun-Hyun Park.
저자명 Park, Kwun-Hyun ; 박권현
발행사항 [서울 : 한국과학기술원, 1980].
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등록번호

4000767

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 8009

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초록정보

In this research natural convection heat transfer in the annulus between two horizontal cylinders has been studied. The bipolar cylindrical coordinates are used for the eccentric annulus whereas the polar cylindrical coordinates are adopted for the concentric case. The Navier-Stokes equations based on the Boussinesq approximation are solved numerically using finite difference method and successive overrelaxation procedures. Calculations have been made for three different Rayleigh numbers and a number of different eccentricity while the Prandtl number and the diameter ratio of the cylinders are fixed at 0.7 and 2.6, respectively. The overall result of the calculations for the concentric annulus is in good agreement with the data published in the literature. For the eccentric case the temperature distribution is well predicted in comparison with the experimental data reported by Kuehn and Goldstein (1978). It is found that the heat transfer coefficients at the upper eccentricity, $ε_v= \frac{2}{3}$, are lower by 3 to 8% than those of concentric case, while are higher by 5 to 12% for the lower eccentricity $ε_v=\frac{-2}{3}$. These values slightly disagree with the experimental data but the qualitative trends are well coincident. $ε_v=\frac{-2}{3}$, These values slightly disagree with the experimental data but the qualitative trends are well coincident.

서지기타정보

서지기타정보
청구기호 {MME 8009
형태사항 [vi], 54 p. : 삽도 ; 26 cm
언어 영어
일반주기 Appendix : A, Boussinesq equations in bipolsr cylindrical coordinates. - B, Table and figures
저자명의 한글표기 : 박권현
지도교수의 영문표기 : Keun-Sik Chang
지도교수의 한글표기 : 장근식
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 Reference : p. 52-54
주제 Heat --Convection, natural.
Navier-Stokes equations.
Finite differences.
Heat --Transmission.
Navier-Stokes 방정식. --과학기술용어시소러스
유한 차분법. --과학기술용어시소러스
좌표 변환기. --과학기술용어시소러스
자연 대류. --과학기술용어시소러스
대류 열전달. --과학기술용어시소러스
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