functiondp_laminar_DP
Pressure loss of straight pipe | calculate pressure loss| laminar flow regime (Hagen-Poiseuille)
Extends from Modelica.Icons.Function (Icon for functions).
Information
Calculation of pressure loss in a straight pipe for laminar flow regime of an incompressible and single-phase fluid flow only.
Generally this function 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. On the other hand the function dp_laminar_MFLOW 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. See more information.
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Fluid.Dissipation.PressureLoss.StraightPipe.dp_laminar_IN_con | IN_con | Input record for function dp_laminar_DP | |
| Modelica.Fluid.Dissipation.PressureLoss.StraightPipe.dp_laminar_IN_var | IN_var | Input record for function dp_laminar_DP | |
| SI.MassFlowRate | m_flow | Mass flow rate |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Pressure | DP | Output for function dp_laminar_DP |