.Modelica.Fluid.Dissipation.PressureLoss.General.dp_nominalDensityViscosity_DP

Information

Calculation of a generic pressure loss in dependence of nominal fluid variables (e.g., nominal density, nominal dynamic viscosity) at an operation point via interpolation. This generic function considers the pressure loss law via a pressure loss exponent and the influence of density and dynamic viscosity on pressure loss.

Generally this function is numerically best used for the incompressible case, where the mass flow rate (m_flow) is known (as state variable) in the used model and the corresponding pressure loss (DP) has to be calculated. On the other hand the function dp_nominalDensityViscosity_MFLOW is numerically best used for the compressible case if the pressure loss (dp) is known (out of pressures as state variable) and the mass flow rate (M_FLOW) has to be calculated. See more information.

Interface

function dp_nominalDensityViscosity_DP
  extends Modelica.Icons.Function;
  import FD = Modelica.Fluid.Dissipation.PressureLoss.General;
  input Modelica.Fluid.Dissipation.PressureLoss.General.dp_nominalDensityViscosity_IN_con IN_con "Input record for function dp_nominalDensityViscosity_DP" annotation(
    Dialog(group = "Constant inputs"));
  input Modelica.Fluid.Dissipation.PressureLoss.General.dp_nominalDensityViscosity_IN_var IN_var "Input record for function dp_nominalDensityViscosity_DP" annotation(
    Dialog(group = "Variable inputs"));
  input SI.MassFlowRate m_flow "Mass flow rate" annotation(
    Dialog(group = "Input"));
  output SI.Pressure DP "Output for function dp_nominalDensityViscosity_DP";
end dp_nominalDensityViscosity_DP;