粘弾性流体によって輸送される水和物スラリーのキャビティ内熱伝達特性
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概要
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A two dimentional numerical study has been performed to investigate on heat transfer characteristics of a hydrate slurry transported by a visco-elastic fluid flowing between parallel plates with a one-sided cavity. In this study, the cavity length was changed in three steps, while the rib height and rib length were kept constant. Heat flux on the solid wall was set at 20,000W•m<Sup>-2</Sup>. The concentration of hydrate particles at inlet was set at 5wt%. From the results, it is found that hydrate particles dispersed with Newtonian fluid (water) flows over the cavity without penetration. On the other hand, hydrate particles dispersed with visco-elastic fluid are observed effectively to penetrate into the cavity and sweep the bottom of cavity by Barus effect. This causes effective heat transfer from the bottom wall of the cavity. Heat transfer difference was observed that the cavity length was changed. Consequently, there exists the optimum geometry for the heat transfer enhancement in a cavity by using Barus effect.
- 公益社団法人 日本冷凍空調学会の論文
公益社団法人 日本冷凍空調学会 | 論文
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