Calculation of a generic pressure loss for an ideal gas using mean density.
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_idealGas_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.
function dp_idealGas_MFLOW extends Modelica.Icons.Function; import FD = Modelica.Fluid.Dissipation.PressureLoss.General; input Modelica.Fluid.Dissipation.PressureLoss.General.dp_idealGas_IN_con IN_con "Input record for function dp_idealGas_MFLOW" annotation( Dialog(group = "Constant inputs")); input Modelica.Fluid.Dissipation.PressureLoss.General.dp_idealGas_IN_var IN_var "Input record for function dp_idealGas_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_idealGas_MFLOW"; end dp_idealGas_MFLOW;