WOLFRAM SYSTEM MODELER

dp_laminar_DP

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

Wolfram Language

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

Syntax

DP = dp_laminar_DP(IN_con, IN_var, m_flow)

Inputs (3)

IN_con

Type: dp_laminar_IN_con

Description: Input record for function dp_laminar_DP
IN_var

Type: dp_laminar_IN_var

Description: Input record for function dp_laminar_DP
m_flow

Type: MassFlowRate (kg/s)

Description: Mass flow rate

Outputs (1)

DP

Type: Pressure (Pa)

Description: Output for function dp_laminar_DP