MapleSim Hydraulics Library from Modelon - MapleSim Help

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MapleSim Hydraulics Library from Modelon

Rigid Line No States $—$ Losses of a rigid line as a function of Reynolds number

The RigidLineNoStates component describes the laminar/turbulent flow through a circular, smooth rigid line (that is, it calculates the flow rate q as a function of pressure drop dp). There are two flow modes:

 0 < Re < ReCrit laminar (Hagen-Poiseuille) ReCrit < Re turbulent (Blasius)

The functions q = q(Re) and q = q(dp) are unique.

Connections

 Name Description Modelica ID ${\mathrm{port}}_{A}$ Layout of port where oil flows into an element ($0<{m}_{\mathrm{flow}}$, ${p}_{B}<{p}_{A}$ means $0<\mathrm{Δp}$) port_A ${\mathrm{port}}_{B}$ Hydraulic port where oil leaves the component (${m}_{\mathrm{flow}}<0$, ${p}_{B}<{p}_{A}$ means $0<\mathrm{Δp}$) port_B $\mathrm{oil}$ oil

Parameters

 Name Default Units Description Modelica ID ${\mathrm{ΔT}}_{\mathrm{system}}$ $0$ $K$ Temperature offset from system temperature dT_system $d$ $0.05$ $m$ Line diameter diameter $\ell$ $10$ $m$ Line length length

Constants

 Name Value Units Description Modelica ID $\mathrm{Blasiusconstant}$ $0.316$ Coefficient for blasius Blasiusconstant $\mathrm{ReCrit}$ $2.32·{10}^{3}$ $1$ Critical Reynolds number ReCrit