대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제12권1호
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- Pages.28-35
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- 1988
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- 1225-5963(pISSN)
DOI QR Code
수평타원 환상공간에서의 자연대류에 관한 실험적 연구
An experimental study on natural convection in the annuli between two horizontal elliptic cylinders
초록
본 연구는 이중벽용기에서 볼 수 있는 환상공간에 관한 자연대류 연구로서 용기속에 들어있는 유체의 열차폐를 위한 최적의 가스두께를 측정하기 위하여 필요한 지식을 얻기위한 열전달 연구이다.
Experimental study has been carried out on natural convection in the annuli formed by two isothermal horizontal inner and outer elliptic cylinders with uniform gap. The eccentricities of inner and outer elliptic cylinder and the gap ratio for the experimental model were 0.5078, 0.389 and 0.363 respectively. The temperature distributions were obtained through the analysis of interferograms which were taken by Mach-Zehnder interferometer in the range of Rayleigh number (Ra
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