Heat Transfer Correlations of Natural Convection with Density Inversion in a Vertical Enclosure

Natural convection of water with density inversion is discussed numerically. The region for calculation is a rectangular region, and its lower temperature wall is kept at 0°C. The higher wall temperature is between l°C and 12°C. The length of a vertical wall is less than 10 cm. The ratio of the hori...

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Bibliographic Details
Published inTransactions of the Japan Society of Mechanical Engineers Series B Vol. 59; no. 558; pp. 564 - 570
Main Authors Ishikawa, Masaaki, Hirata, Tetsuo, Tamaki, Hiroya
Format Journal Article
LanguageJapanese
Published The Japan Society of Mechanical Engineers 25.02.1993
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Nusselt Number
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Summary:Natural convection of water with density inversion is discussed numerically. The region for calculation is a rectangular region, and its lower temperature wall is kept at 0°C. The higher wall temperature is between l°C and 12°C. The length of a vertical wall is less than 10 cm. The ratio of the horizontal length to the vertical wall length is between 0.2 and 1.5. The average Nusselt number of a vertical wall is characterized by a density function, a Galilei number and an equivalent aspect ratio. Using these parameters appropriately, simple correlations among average heat transfer rate and other conditions are obtained.
ISSN:0387-5016
1884-8346
DOI:10.1299/kikaib.59.564