modelNominalLaminarFlow
NominalLaminarFlow: Linear laminar flow for given nominal values
Extends from TRANSFORM.Fluid.Pipes_Obsolete.ClosureModels.PressureLoss.FlowModels.PartialStaggeredFlowModel.
Information
This model defines a simple linear pressure loss assuming laminar flow for
specified dp_nominal and m_flow_nominal.
Select show_Res = true to analyze the actual flow and the lengths of a pipe that would fulfill the
specified nominal values for given geometry parameters crossAreas, dimensions and roughnesses.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.AbsolutePressure | dp_nominal | Nominal pressure loss | |
| SI.MassFlowRate | m_flow_nominal | Mass flow rate for dp_nominal |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Length | lengths_nominal | {(dp_nominal/(nFM - 1) - g*dheights[i])*Modelica.Constants.pi*((dimensions[i] + dimensions[i + 1])/2)^4*rhos_act[i]/(128*mus_act[i])/(m_flow_nominal/nParallel) for i in 1:nFM - 1} | Lengths resulting from given nominal values for circular tubes |