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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.9
- 수록면
- 66 - 74 (9page)
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이 논문의 연구 히스토리 (3)
2011
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초록· 키워드
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A fluid in an enclosure can be heated by electric heating, chemical reaction, or fission heat. In order to remove the volumetric heat of the fluid, the walls surrounding the enclosure must be cooled. In this case, a natural convection occurs in the pool of the fluid, and it has a dominant role in heat transfer to the surrounding walls. It can augment the heat transfer rates tens to hundreds times larger than conductive heat transfer. The heat transfer by a natural convection in a regular shape such as a square cavity or semi-circular pool has been studied experimentally and numerically for many years. A pool of cm inverted triangular shape with 10 degree inclined bottom walls has a good cooling performance because of enhanced boiling critical heat flux (CHF) compared to horizontal downward surface. The coolability of the pool is determined by comparing the thermal load from the pool and the maximum heat flux removable by cooling mechanism such as radiative or boiling heat transfer on the pool boundaries. In order to evaluate the pool coolability, it is important to correctly expect the thermal load by a natural convection heat transfer of the pool. In this study, turbulence models with modifications for buoyancy effect were validated for unsteady natural convections by volumetric heating. And natural convection in the triangular pool was evaluated by using the models.
목차
1. 서론
2. 자연대류 열전달 해석 모델 및 검증
3. 삼각형 형상의 풀에 대한 자연대류 해석
4. 결론
참고문헌
참고문헌 (18)
참고문헌 신청
1. [학술지(정기간행물)] - Leong, W.H / 1999 / Experimental Nusselt numbers for a cubical-cavity benchmark problem in natural convection / Int. J. Heat Mass Transfer 42 (11) : 1979 ~ 1989
2. [학술지(정기간행물)] - Sparrow, E.M / 1983 / Natural Convection Experiments in Enclosure Between Eccentric or Concentric Vertical Cylinders of Different Height and Diameter / Int. J. Heat Mass Transfer 25 (1) : 133 ~ 143
4. [학술대회논문] - 허남건 / 2000 / 사각 공동구의 하부 벽면 가진의 진폭 변화에 따른 자연대류 유동의 공진현상에 관한 연구 : 66 ~ 71
5. [학술지(정기간행물)] - Ha, M.Y / 2002 / Two-Dimensional and Unsteady Natural Convection in a Horizontal Enclosure with a Square Body / Numerical Heat Transfer, Part A 41 (2) : 183 ~ 210
6. [학술대회논문] - Stenbrenner, U / 1978 / Turbulence Buoyancy Convection Heat Transfer with Internal Heat Source / Proc. 6th Int. Heat Transfer Conference
2. [학술지(정기간행물)] - Sparrow, E.M / 1983 / Natural Convection Experiments in Enclosure Between Eccentric or Concentric Vertical Cylinders of Different Height and Diameter / Int. J. Heat Mass Transfer 25 (1) : 133 ~ 143
4. [학술대회논문] - 허남건 / 2000 / 사각 공동구의 하부 벽면 가진의 진폭 변화에 따른 자연대류 유동의 공진현상에 관한 연구 : 66 ~ 71
5. [학술지(정기간행물)] - Ha, M.Y / 2002 / Two-Dimensional and Unsteady Natural Convection in a Horizontal Enclosure with a Square Body / Numerical Heat Transfer, Part A 41 (2) : 183 ~ 210
6. [학술대회논문] - Stenbrenner, U / 1978 / Turbulence Buoyancy Convection Heat Transfer with Internal Heat Source / Proc. 6th Int. Heat Transfer Conference
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