.Modelica.Fluid.Pipes.BaseClasses.FlowModels.NominalTurbulentPipeFlow .Modelica.Fluid.Pipes.BaseClasses.FlowModels.NominalTurbulentPipeFlowThis 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 |