Header menu link for other important links
X
Enhanced Cooling of Electronic Components Using Fluid Flow Under High Adverse Pressure Gradient
S. Ravishankar,
Published in American Society of Mechanical Engineers (ASME)
2015
Volume: 7
   
Issue: 3
Abstract
Heat transfer in electronic systems is studied by simulating flow in a two pass channel with the divider representing a circuit board. Bypass holes are introduced on the circuit board to obtain detailed physical insights of the reversed flows in the second pass and thereby improve the cooling effect. The time-dependent governing equations are solved using an in-house code based on Streamline upwind/Petrov-Galerkin finite element method for Reynolds number ranging from 100 to 900. It is observed that stagnant zones are formed in the return path along the upper heated wall due to the formation of primary recirculation region on the divider plate. These stagnant zones are convected downstream by introducing bypass slots thereby enhancing the convective cooling. A parametric study on the location and number of bypass slots reveals that for a particular combination, the flow becomes unsteady thereby the heat transfer is increased. The presence of multiple slot jets also reduces the overall pressure drop required to drive the flow and heat transfer is very high at the point of impingement between the slots. © 2015 by ASME.
About the journal
JournalJournal of Thermal Science and Engineering Applications
PublisherAmerican Society of Mechanical Engineers (ASME)
ISSN19485085
Open AccessNo
Concepts (15)
  •  related image
    Cooling
  •  related image
    Finite element method
  •  related image
    Flow of fluids
  •  related image
    Heat transfer
  •  related image
    Heating
  •  related image
    Reynolds number
  •  related image
    Adverse pressure gradient
  •  related image
    Cross flows
  •  related image
    Electronic systems
  •  related image
    Flow and heat transfer
  •  related image
    Governing equations
  •  related image
    Jet impingement
  •  related image
    RECIRCULATION REGIONS
  •  related image
    SUPG/FEM
  •  related image
    Electronic cooling