.TRANSFORM.Utilities.CharacteristicNumbers.PecletNumber

Information

Defined to be the ratio of the rate of advection of a physical quantity by the flow to the rate of diffusion of the same quantity driven by an appropriate gradient.

In the context of species or mass transfer, it is the product of the Reynolds number and the Schmidt number.

• Pe = Re*Sc

In the context of the thermal fluids, it is the ratio of advection to conduction heat transfer rates.

• Pe = Re*Pr

Interface

function PecletNumber
  extends Modelica.Icons.Function;
  input SI.ReynoldsNumber Re "Reynolds number";
  input SI.PrandtlNumber Pr "Prandtl or Schmidt number";
  output SI.PecletNumber Pe "Peclet number";
end PecletNumber;