.Modelica.Fluid.Pipes.BaseClasses.FlowModels.NominalTurbulentPipeFlow .Modelica.Fluid.Pipes.BaseClasses.FlowModels.NominalTurbulentPipeFlow
This model defines the pressure loss assuming turbulent flow for
specified dp_nominal and m_flow_nominal.
It takes into account the fluid density of each flow segment and
obtains appropriate pathLengths_nominal values
for an inverse parameterization of the
TurbulentPipeFlow
model. Per default the upstream and downstream densities are averaged with the setting useUpstreamScheme = false,
in order to avoid discontinuous pathLengths_nominal values in the case of flow reversal.
The geometry parameters crossAreas, diameters and roughnesses do
not effect simulation results of this nominal pressure loss model.
As the geometry is specified however, the optionally calculated Reynolds number as well as
m_flows_turbulent and dps_fg_turbulent become meaningful
and can be related to m_flow_small and dp_small.
Optional Variables if show_Res
| Type | Name | Description |
|---|---|---|
| ReynoldsNumber | Res[n] | Reynolds numbers of pipe flow per flow segment |
| MassFlowRate | m_flows_turbulent[n-1] | mass flow rates at start of turbulent region for Re_turbulent=4000 |
| AbsolutePressure | dps_fg_turbulent[n-1] | pressure losses due to friction and gravity corresponding to m_flows_turbulent |