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CFD modeling of natural convection in right-angled triangular enclosures

Mirabedin, S. M ; Sharif University of Technology | 2016

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  1. Type of Document: Article
  2. DOI: 10.18280/ijht.340322
  3. Publisher: Edizioni ETS , 2016
  4. Abstract:
  5. Two-dimensional numerical simulations have been performed to study natural convection in right-angled triangular enclosures filled with water considering different aspect ratios. 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 × 104 to 1 × 107 . It is shown that increasing aspect ratio 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 aspect ratio using simulation results
  6. Keywords:
  7. Numerical simulation ; Right-angled enclosure ; Computational fluid dynamics ; Computer simulation ; Enclosures ; Heat transfer ; Natural convection ; Numerical models ; Nusselt number ; Boussinesq approximations ; CFD modeling ; Energy equation ; Heat transfer rate ; Rayleigh number ; Triangular enclosure ; Two-dimensional numerical simulation ; Aspect ratio
  8. Source: International Journal of Heat and Technology ; Volume 34, Issue 3 , 2016 , Pages 503-506 ; 03928764 (ISSN)
  9. URL: http://iieta.org/sites/default/files/Journals/IJHT/34.3_22.pdf