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WOLFRAM SYSTEM MODELER

Volume

Fixed volume with fluid storage

Wolfram Language

In[1]:=

SystemModel["Hydraulic.LiquidContainers.Volume"]

Out[1]:=

Information

This is a model of a fixed fluid storage. The pressure in the model is given by:

where

	:	Pressure change
V	:	Volume
	:	Bulk modulus of the medium
	:	Mass flow rate into the volume
	:	Density of the medium

Limitations

The bulk modulus is assumed to be constant.

Reference

C. Nordling and J. Österman, Physics Handbook for Science and Engineering, 7th ed., Lund, Sweden: Studentlitteratur, 2004 p. 183.

Parameters (2)

medium	Value: Oil() Type: Medium Description: Medium in the component
V	Value: 1e-06 Type: Volume (m³) Description: Volume

medium

Value: Oil()

Type: Medium

Description: Medium in the component

Value: 1e-06

Type: Volume (m³)

Description: Volume

Connectors (1)

	port	Type: Port_a Description: Port for hydraulic fluid (filled icon)

port

Type: Port_a

Description: Port for hydraulic fluid (filled icon)

Components (1)

	medium	Type: Medium Description: Medium in the component

medium

Type: Medium

Description: Medium in the component

Used in Examples (2)

HydrostaticTransmission

Hydraulic.Examples.Rotation

Example circuit of a pump driving a motor

OpenCenterHydraulicSystem

Hydraulic.Examples.Rotation

Example circuit with a pump that unloads to a reservoir when inactive

Used in Components (31)

	V22 Hydraulic.Valves.DirectionalControl.Internal Partial valve with two ports and two states
	V32 Hydraulic.Valves.DirectionalControl.Internal Partial valve with three ports and two states
	V33 Hydraulic.Valves.DirectionalControl.Internal Partial valve with three ports and two states
	V42 Hydraulic.Valves.DirectionalControl.Internal Partial valve with four ports and two states
	V43ClosedCenter Hydraulic.Valves.DirectionalControl.Internal Partial valve with four ports and three states
	V43DiagonalCenter Hydraulic.Valves.DirectionalControl.Internal Partial valve with four ports and three states
	V43FloatingCenter Hydraulic.Valves.DirectionalControl.Internal Partial valve with four ports and three states
	V43OpenCenter Hydraulic.Valves.DirectionalControl.Internal Partial valve with four ports and three states
	V43TandemCenter Hydraulic.Valves.DirectionalControl.Internal Partial valve with four ports and three states
	V63 Hydraulic.Valves.DirectionalControl.Internal Partial valve with six ports and three states
	CheckValve Hydraulic.Valves.DirectionalControl Check valve with lumped volumes
	ShuttleValve Hydraulic.Valves.DirectionalControl Shuttle valve with lumped volumes
	DualPressureValve Hydraulic.Valves.DirectionalControl Dual pressure valve with lumped volumes
	PilotOperatedCheckValvePilotToClose Hydraulic.Valves.DirectionalControl Pilot-operated check valve with lumped volumes
	PilotOperatedCheckValvePilotToOpen Hydraulic.Valves.DirectionalControl Pilot-operated check valve with lumped volumes
	FixedLaminarThrottle Hydraulic.Valves.FlowControl Laminar restriction using conductance
	FixedTurbulentThrottle Hydraulic.Valves.FlowControl Turbulent restriction
	VariableLaminarThrottle Hydraulic.Valves.FlowControl Laminar restriction using conductance
	VariableTurbulentThrottle Hydraulic.Valves.FlowControl Controlled restriction
	TwoWayFlowControlValve Hydraulic.Valves.FlowControl Assembly with a restriction and a pressure compensating valve
	ThreeWayFlowControlValve Hydraulic.Valves.FlowControl Assembly with a restriction and a pressure compensating valve
	PressureReliefValve Hydraulic.Valves.PressureControl Pressure valve, controlled by the pressure difference between the ports
	PressureReducingValve Hydraulic.Valves.PressureControl Pressure valve, controlled by the pressure difference between the ports
	UnloadingReliefValve Hydraulic.Valves.PressureControl Unloading relief valve, controlled by the pressure difference between the ports
	CompoundReliefValve Hydraulic.Valves.PressureControl Pilot-operated relief valve
	SequenceValve Hydraulic.Valves.PressureControl Pressure valve, controlled by the pressure at port_a
	PilotOperatedSequenceValve Hydraulic.Valves.PressureControl Pressure valve, controlled by the pressure at the port_pilot
	PressureCompensatingValveNormallyOpen Hydraulic.Valves.PressureControl Pressure valve, controlled by the pressure difference between the ports
	PressureCompensatingValveNormallyClosed Hydraulic.Valves.PressureControl Pressure valve, controlled by the pressure difference between the ports
	DisplacementMachine Hydraulic.PumpsAndMotors.Internal Model of a pump/motor with volumes
	Pipe Hydraulic.Restrictions.Pipes Model of steady, laminar flow through a pipe