超臨界圧流体の管内層流熱伝達率整理式に関する検討

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  • Study on Heart Transfer Correlation for Supercritical Pressure Fluid in Vertical Laminar Flow
  • チョウリンカイアツ リュウタイ ノ カン ナイ ソウリュウ ネツ デンタツリツ セイリシキ ニ カンスル ケントウ

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説明

In this study, dimensionless parameters such as Nusselt number and Prandtl number were examined for the heat transfer correlation for supercritical pressure fluid in vertical laminar flow, based on the data obtained by numerical calculation. From the examination, following results were obtained. (1)Nusselt number has a peak when the bulk temperature is slightly below the pseudo-critical temperature. (2)Relation of ratio of Nusselt number and ratio of Prandtl number can be divided into two regions. (3)At the region where bulk temperature is below the temperature of the peak Nuw/4.36, Nusselt number can be described only with the ratio of Prandtl number.

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