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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 889 - 896 (8page)
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초록· 키워드
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Recent progress in the computational fluid dynamics methods of two- and multiphase phase flows has already started opening up new exciting possibilities for using complete multidimensional models to simulate boiling systems. Combining this new theoretical and computational approach with novel experimental methods should dramatically improve both our understanding of the physics of boiling and the predictive capabilities of models at various scale levels. However, for the multidimensional modeling framework to become an effective predictive tool, it must be complemented with accurate mechanistic closure laws of local boiling mechanisms.
Boiling heat transfer has been studied quite extensively before. However, it turns out that the prevailing approach to the analysis of experimental data for both pool boiling and forced-convection boiling has been associated with formulating correlations which normally included several adjustable coefficients rather than based on first principle models of the underlying physical phenomena. One reason for this has been the tendency (driven by practical applications and industrial needs) to formulate single expressions which encompass a broad range of conditions and fluids. This, in turn, makes it difficult to identify various specific factors which can be independently modeled for different situations.
The objective of this paper is to present a mechanistic modeling concept for both pool boiling and forced-convection boiling. The proposed approach is based on theoretical first-principle concepts, and uses a minimal number of coefficients which require calibration against experimental data. The proposed models have been validated against experimental data for water and parametrically tested. Model predictions are shown for a broad range of conditions.
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참고문헌 (24)
참고문헌 신청
Addoms, J. N / 1948 / Heat Transfer at High Rates to Water Boiling Outside Cylinders / M.I.T
Alajbegovic, A / 1997 / A New Mechanistic Model of Critical Heat Flux in Forced-Convection Subcooled Boiling / Proc. of the Eight International Topical Meeting on Nuclear Reactor T
Anglart, H / 1997 / CFD Simulation of Flow and Phase Distribution in uel Assemblies with Spacers / Nuclear Engineering and Design 177 : 215 ~ 228
Bartolomei, G.G / 1967 / Experimental Study of True Void Fraction when Boiling Subcooled Water in Vertical Tubes / Thermal Engineering 14 : 123 ~ 128
Bergles, A.E / 1992 / Elements of Boiling Heat Transfer, In Boiling Heat Transfer; Modern Developments and Advances / Elsevier
Alajbegovic, A / 1997 / A New Mechanistic Model of Critical Heat Flux in Forced-Convection Subcooled Boiling / Proc. of the Eight International Topical Meeting on Nuclear Reactor T
Anglart, H / 1997 / CFD Simulation of Flow and Phase Distribution in uel Assemblies with Spacers / Nuclear Engineering and Design 177 : 215 ~ 228
Bartolomei, G.G / 1967 / Experimental Study of True Void Fraction when Boiling Subcooled Water in Vertical Tubes / Thermal Engineering 14 : 123 ~ 128
Bergles, A.E / 1992 / Elements of Boiling Heat Transfer, In Boiling Heat Transfer; Modern Developments and Advances / Elsevier
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