首页    期刊浏览 2025年02月20日 星期四
登录注册

文章基本信息

  • 标题:Natural convection in circular enclosures heated from below for various central angles
  • 作者:Seyed Milad Mirabedin ; Fatola Farhadi
  • 期刊名称:Case Studies in Thermal Engineering
  • 印刷版ISSN:2214-157X
  • 电子版ISSN:2214-157X
  • 出版年度:2016
  • 卷号:8
  • 页码:322-329
  • DOI:10.1016/j.csite.2016.08.007
  • 出版社:Elsevier B.V.
  • 摘要:

    Two-dimensional numerical simulations have been performed to study natural convection in circular enclosures filled with water considering different central angles. Continuity, momentum and energy equations are solved assuming Boussinesq approximation utilizing COMSOL. Effect of Rayleigh number, Ra, on heat transfer rate is investigated by showing Nusselt number, Nu, for a range from 1 × 10 3 to 1 × 10 7 . It is shown that decreasing central angle of the cavity increases averaged Nusselt number in a cavity heated from below. Finally, a correlation for heat transfer rate is developed considering the effect of the angle between two sides of the cavity and Ra number using simulation results.

  • 关键词:Natural convection ; Circular enclosure ; Rayleigh number ; Nusselt number ; Central angle ; Numerical simulation
Loading...
联系我们|关于我们|网站声明
国家哲学社会科学文献中心版权所有