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What is the Nusselt Number?

- July 31, 2020 at 1:59 pm
  
  prajput
  Ansys Employee
  
  What is the Nusselt Number?
- July 31, 2020 at 1:59 pm
  
  Karthik Remella
  Administrator
  
  The Nusselt number represents the ratio of the heat transfer due to convection to the heat transfer due to conduction that would occur in a motionless fluid:
  Nu = hL/k
  where
  h is the convective heat transfer coefficient
  L is the characteristic length
  k is the thermal conductivity
  The Nusselt number can be also seen as non-dimensional temperature gradient at a surface.

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