.TRANSFORM.HeatAndMassTransfer.ClosureRelations.HeatTransfer.Functions.SinglePhase.ExternalFlow.LiquidMetal.Nu_GraberRieger

Information

The Graber-Rieger is a liquid metal rod bundle heat transfer correlation.

Range of Validity:

• liquid metal coolant
• 150 <= Pe <= 3000
• 1.25 < Pitch/Diameter <= 1.95

References

1. AlanE. Waltar, Donald R. Todd, Pavel V. Tsvetkov, Fast Spectrum Reactors 2012

Interface

function Nu_GraberRieger
  input SI.ReynoldsNumber Re "Reynolds number";
  input SI.PrandtlNumber Pr "Prandtl number";
  input Real PDratio "Tube Pitch to Diameter ratio";
  output SI.NusseltNumber Nu "Nusselt number - S1:Eq. 9.34";
end Nu_GraberRieger;