WOLFRAM SYSTEM MODELER

dp_laminar_MFLOW

Pressure loss of straight pipe | calculate mass flow rate | laminar flow regime (Hagen-Poiseuille)

Wolfram Language

In[1]:=
SystemModel["Modelica.Fluid.Dissipation.PressureLoss.StraightPipe.dp_laminar_MFLOW"]
Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

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 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_laminar_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.

Syntax

M_FLOW = dp_laminar_MFLOW(IN_con, IN_var, dp)

Inputs (3)

IN_con

Type: dp_laminar_IN_con

Description: Input record for function dp_laminar_MFLOW
IN_var

Type: dp_laminar_IN_var

Description: Input record for function dp_laminar_MFLOW
dp

Type: Pressure (Pa)

Description: Pressure loss

Outputs (1)

M_FLOW

Type: MassFlowRate (kg/s)

Description: Output for function dp_laminar_MFLOW