한국해양대학교

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가로지른 옵셋스트립휜에서 오일 유동의 열전달에 관한 연구

Title
가로지른 옵셋스트립휜에서 오일 유동의 열전달에 관한 연구
Alternative Title
A Study on the Heat Transfer of Oil Flow over Transverse Array of Offset Strip Fins
Author(s)
신성학
Publication Year
2004
Publisher
한국해양대학교 대학원
URI
http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002174504
http://repository.kmou.ac.kr/handle/2014.oak/8544
Abstract
In the present study, heat transfer characteristics of oil flow over transverse array of offset strip fins are predicted by the numerical methods. Oil flow in the plate-fin passage is idealized by three dimensions. The governing equations are discretized by finite volume method. The flow patterns and heat transfer characteristics are predicted in details. The convective heat transfer coefficients and friction factor are reduced from numerical results. The effect of variable viscosity on the convective heat transfer coefficient and friction factors is predicted and compared with the results of constant viscosity. The characteristic length which represented the flow situation is selected by comparing friction factors in the case of constant viscosity. Therefore, the equivalence length is selected to the characteristic length. Friction factor is 50% less than that of constant viscosity. And also, convective heat transfer coefficient is 50% more than that of constant viscosity. Correlation for convective heat transfer coefficient is derived.
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냉동공조공학과 > Thesis
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