.Modelica.Fluid.Pipes.BaseClasses.WallFriction.LaminarAndQuadraticTurbulent.Internal.m_flow_of_dp_fric

Interface

function m_flow_of_dp_fric
  extends Modelica.Icons.Function;
  input SI.Pressure dp_fric "Pressure loss due to friction (dp = port_a.p - port_b.p)";
  input SI.Density rho_a "Density at port_a";
  input SI.Density rho_b "Density at port_b";
  input SI.DynamicViscosity mu_a "Dynamic viscosity at port_a (dummy if use_mu = false)";
  input SI.DynamicViscosity mu_b "Dynamic viscosity at port_b (dummy if use_mu = false)";
  input SI.Length length "Length of pipe";
  input SI.Diameter diameter "Inner (hydraulic) diameter of pipe";
  input SI.Area crossArea "Inner cross section area";
  input SI.ReynoldsNumber Re1 "Boundary between laminar regime and transition";
  input SI.ReynoldsNumber Re2 "Boundary between transition and turbulent regime";
  input Real Delta(min = 0) "Relative roughness";
  output SI.MassFlowRate m_flow "Mass flow rate from port_a to port_b";
  output Real dm_flow_ddp_fric "Derivative of mass flow rate with dp_fric";
end m_flow_of_dp_fric;