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Two-dimensional free convection heat transfer below a horizontal hot isothermal flat strip

Samie, M ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1115/1.4029742
  3. Publisher: American Society of Mechanical Engineers (ASME) , 2015
  4. Abstract:
  5. Convection heat transfer below a horizontal, hot, and isothermal strip of infinite length and width of 2L embedded in fluids with different Prandtl number (Pr) and Nusselt number (Nu) is analyzed with the aid of integral method. A new concept is utilized to determine the boundary layer thickness at the strip's edge, which is based on matching the flow rate of the boundary layer below the strip at its edge and the flow rate of the plume, which forms after the heated fluid detaches from the strip's edge. In addition to these novelties, a numerical model is developed to verify the analytical framework, and an excellent agreement is observed between the analytical and numerical models
  6. Keywords:
  7. Free convection ; Boundary layer flow ; Boundary layers ; Flow rate ; Heat convection ; Isotherms ; Natural convection ; Numerical models ; Prandtl number ; Analytical and numerical models ; Boundary layer thickness ; Different prandtl numbers ; Flat strips ; Heated fluids ; Integral method ; Isothermal strip ; plume ; Heat transfer
  8. Source: Journal of Heat Transfer ; Volume 137, Issue 5 , May , 2015 ; 00221481 (ISSN)
  9. URL: http://heattransfer.asmedigitalcollection.asme.org/article.aspx?articleid=2111013