Spool Valve $—$ Spool valve

This is a model of a spool valve.

Connections

 Name Description Modelica ID $\mathrm{supportA}$ supportA $\mathrm{supportB}$ supportB $\mathrm{flangeA}$ flangeA $\mathrm{flangeB}$ flangeB $\mathrm{oil}$ oil $\mathrm{portA}$ portA $\mathrm{portA1}$ portA1

Parameters

General Parameters

 Name Default Units Description Modelica ID $L$ $m$ Element length L $\mathrm{reverse}$ $\mathrm{false}$ Reverse the sign convention, see documentation for details reverse ${V}_{0}$ $0$ ${m}^{3}$ Dead volume V0 $A$ ${m}^{2}$ Spool area A ${A}_{\mathrm{rod}}$ ${m}^{2}$ Rod area A_rod $\mathrm{deltaR}$ ${10}^{-5}$ $m$ Radial clearance > 0 deltaR $\mathrm{TransitionType}$ $1$ Type of transition TransitionType ${k}_{1}$ $10$ Laminar part of flow model k1 ${k}_{2}$ $2.04$ Turbulent part of flow model k2 $\mathrm{Cdmax}$ $0.7$ Discharge coefficient Cdmax ${\mathrm{\lambda }}_{c}$ $14$ Critical flow number lambdac ${\mathrm{ΔT}}_{\mathrm{system}}$ $0$ $K$ Temperature offset from system temperature dT_system

Orifice Parameters

 Name Default Units Description Modelica ID $\mathrm{orificeType}$ $1$ orificeType $\mathrm{flowareamax}$ ${m}^{2}$ Maximum flow area flowareamax ${x}_{\mathrm{min}}$ $m$ Position>x_min => valve opens x_min ${x}_{\mathrm{max}}$ $m$ Position>x_max => valve fully open x_max ${\mathrm{area}}_{\mathrm{tab}}$ $\left\{\left\{0\right\},\left\{0.1\right\},\left\{0.2\right\},\left\{0.3\right\}\right\}$ Table for orifice area area_tab ${\mathrm{diam}}_{\mathrm{tab}}$ $\left\{\left\{0\right\},\left\{0.1\right\},\left\{0.2\right\},\left\{0.3\right\}\right\}$ Table for orifice hydraulic diameter diam_tab