Calculation of pressure loss in thick edged orifices with sharp corners at overall flow regime for incompressible and single-phase fluid flow through an arbitrary shaped cross sectional area (square, circular, etc.) considering constant influence of surface roughness.
Generally this function is numerically best used for the compressible case, where the pressure loss (dp) is known (out of pressures as state variable) in the used model and the corresponding mass flow rate (M_FLOW) has to be calculated. On the other hand the function dp_thickEdgedOverall_DP is numerically best used for the incompressible case if the mass flow rate (m_flow) is known (as state variable) and the pressure loss (DP) has to be calculated. See more information.
function dp_thickEdgedOverall_MFLOW extends Modelica.Icons.Function; import FD = Modelica.Fluid.Dissipation.PressureLoss.Orifice; import SMOOTH = Modelica.Fluid.Dissipation.Utilities.Functions.General.Stepsmoother; input Modelica.Fluid.Dissipation.PressureLoss.Orifice.dp_thickEdgedOverall_IN_con IN_con "Input record for function dp_thickEdgedOverall_MFLOW" annotation( Dialog(group = "Constant inputs")); input Modelica.Fluid.Dissipation.PressureLoss.Orifice.dp_thickEdgedOverall_IN_var IN_var "Input record for function dp_thickEdgedOverall_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_thickEdgedOverall_MFLOW"; end dp_thickEdgedOverall_MFLOW;