WOLFRAM SYSTEM MODELER

FixedLaminarThrottle

Laminar restriction using conductance

Diagram

Wolfram Language

In[1]:=
SystemModel["Hydraulic.Valves.FlowControl.FixedLaminarThrottle"]
Out[1]:=

Information

This model with lumped volumes describes laminar flow. The flow is given by the equation:



where
:Mass flow rate
:Fluid density
G:Conductance of the restriction
:Pressure difference between ports a and b

Reference

F. Young, R. Munson, H. Okiishi, and W. Huebsch, A Brief Introduction to Fluid Mechanics, 4th ed., Hoboken, NJ: Wiley, 2007 p. 291.

Parameters (3)

medium

Value: Oil()

Type: Medium

Description: Medium in the component
G

Value: 1e-010

Type: ConductanceOfLaminarResistance (m³/(s⋅Pa))

Description: Conductance of laminar resistance
V

Value: 0.0001

Type: Volume (m³)

Description: Volume of component

Connectors (2)

port_b

Type: Port_b

Description: Port for hydraulic fluid (unfilled icon)
port_a

Type: Port_a

Description: Port for hydraulic fluid (filled icon)

Components (4)

medium

Type: Medium

Description: Medium in the component
restrictionLaminar

Type: RestrictionLaminar

Description: Laminar restriction using conductance
volume_a

Type: Volume

Description: Fixed volume with fluid storage
volume_b

Type: Volume

Description: Fixed volume with fluid storage

Used in Examples (3)

AccumulatorChargingCircuit

Hydraulic.Examples.Accumulators

Example circuit with an unloading relief valve and an accumulator

AutomaticAccumulatorDischarge

Hydraulic.Examples.Accumulators

Example circuit with automatic discharge of an accumulator

HydrostaticTransmission

Hydraulic.Examples.Rotation

Example circuit of a pump driving a motor