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논문 기본 정보

자료유형
학술대회자료
저자정보
김창환 (경원이엔씨) 김구환 (알란텀) 우민호 (경원이엔씨) 이정민 (알란텀)
저널정보
한국전산유체공학회 한국전산유체공학회 학술대회논문집 한국전산유체공학회 2012년도 춘계학술대회 논문집
발행연도
2012.5
수록면
492 - 499 (8page)

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초록· 키워드

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Porous media have been frequently used as flow uniformity devices and many types of reactors in chemical processes. In recent year, porous applications are more widely expanded with increasing the issue of environmental protection and reducing energy. Porous media is not only applied to automotive after treatment system but also used to reduction equipment in plants. There are several numerical approaches for this kind of media. First, 0-D or 1-D model has been developed to calculate the chemical reaction, heat and mass transfer. This focuses on total conversion and systematical control of the process. On the other hand, CFD analysis can deal with the effect of geometry and consider more various conditions. And most CFD currently simulate these devices using porous model. Porous model evaluates the flow field through the material using the ratio between volume occupied by fluid and solid In the porous model, flow through the material is only focused on pressure drop in general. However, flow patterns in the structure are quite different from the types of material. And this affects the characteristics of heat and mass transfer. Considering this kind of effects, porous model analysis can achieve more reasonable results. In this paper, metal foam is considered as porous media, and porous media will be modeled by using pore scale approach rather than experimental calibration. Through the simulation of the flow and heat transfer in pore scale, the availability of porous model will be discussed. Moreover we will also discuss total heat transfer coefficient of porous media with analyzing conjugate heat transfer characteristics in the porous structure. Through the research, we can substitute for the process to find out model constant, which is currently depends on the experiment.

목차

1. 서론
2. Porous model review
3. Pore scale 해석을 통한 porous model parameter 도출
4. Pore scale 해석과 porous model을 이용한 열전달 특성해석
4. 결론
5. 후기
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UCI(KEPA) : I410-ECN-0101-2013-422-002848569