.Modelica.Fluid.Dissipation.PressureLoss.General.dp_volumeFlowRate_MFLOW

Information

Calculation of a generic pressure loss with linear or quadratic dependence on volume flow rate. Please note that the sum of a and b has to be greater zero. The function can be used to calculate pressure loss at known mass flow rate or mass flow rate at known pressure loss.

Generally this function 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. On the other hand the function dp_volumeFlowRate_DP 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. See more information.

Interface

function dp_volumeFlowRate_MFLOW
  extends Modelica.Icons.Function;
  import FD = Modelica.Fluid.Dissipation.PressureLoss.General;
  input Modelica.Fluid.Dissipation.PressureLoss.General.dp_volumeFlowRate_IN_con IN_con "Input record for function dp_volumeFlowRate_MFLOW" annotation(
    Dialog(group = "Constant inputs"));
  input Modelica.Fluid.Dissipation.PressureLoss.General.dp_volumeFlowRate_IN_var IN_var "Input record for function dp_volumeFlowRate_MFLOW" annotation(
    Dialog(group = "Variable inputs"));
  input SI.Pressure dp "Pressure loss" annotation(
    Dialog(group = "Input"));
  output SI.MassFlowRate M_FLOW "Output for function dp_volumeFlowRate_MFLOW";
end dp_volumeFlowRate_MFLOW;

Revisions