function dp_DP import Modelica.Math.log10; import Modelica.Constants.pi; extends Modelica.Icons.Function; input dp_IN_con IN_con "Input record for function dp_overall_DP" annotation( Dialog(group = "Constant inputs")); input dp_IN_var IN_var "Input record for function dp_overall_DP" annotation( Dialog(group = "Variable inputs")); input SI.MassFlowRate m_flow "Mass flow rate (positive is port_a to port_b)" annotation( Dialog(group = "Input")); input SI.MassFlowRate m_flow_small = 0.01 "Regularization of zero flow if |m_flow| < m_flow_small (dummy if use_m_flow_small = false)"; output SI.Pressure DP "Output for function dp_overall_DP"; end dp_DP;