Thermosolutal convection flow and the associated heat and mass transfer process in a square enclosure

K. H. Wu, Chie Gau

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

Thermosolutal convection flow and its effect on the heat and the mass transfer in a square enclosure is studied experimentally. Both thermal and solute diffusion are induced from the sides, and natural convection is initiated by the combined thermal and solutal buoyancies which either augment with or oppose to each other. The solute diffusion is initiated in an electrochemical system that uses copper sulphate-sulphuric acid solution as an electrolyte. Depending on the magnitude of buoyancy ratio, three different kinds of flow regimes and structures can occur which lead to different distributions of concentration in the enclosure. The solutal boundary layer flow which can intrude and accumulate along the horizontal wall leads to the formation and growth of layered flow structure. The nearly stagnant layer occurred can reduce the heat transfer rate. The Nusselt numbers at different flow regimes are measured and correlated in terms of relevant nondimensional parameters. This suggests the correlation of Sherwood number in different ranges of buoyancy ratio. The visualization of flow structure and measurements of both heat and mass transfer allow a better understanding of the complicated system.

原文English
主出版物標題Natural Convection in Enclosures - 1992
發行者Publ by ASME
頁面121-131
頁數11
198
ISBN(列印)0791809242
出版狀態Published - 1992
事件28th National Heat Transfer Conference and Exhibition - San Diego, CA, USA
持續時間: 1992 八月 91992 八月 12

Other

Other28th National Heat Transfer Conference and Exhibition
城市San Diego, CA, USA
期間92-08-0992-08-12

All Science Journal Classification (ASJC) codes

  • 流體流動和轉移過程
  • 機械工業

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