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WOLFRAM SYSTEM MODELER

Length

Wolfram Language

In[1]:=

SystemModel["Modelica.Units.SI.Length"]

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Type Information

Length	Quantity: "Length" Unit: m

Length

Quantity: "Length"

Unit: m

Used in Examples (14)

	IMC_Conveyor Modelica.Electrical.Machines.Examples.InductionMachines Test example: InductionMachineSquirrelCage with inverter driving a conveyor
	QuadraticCoreAirgap Modelica.Magnetic.FluxTubes.Examples.BasicExamples Educational example: iron core with airgap
	ToroidalCoreAirgap Modelica.Magnetic.FluxTubes.Examples.BasicExamples Educational example: iron core with airgap
	ToroidalCoreQuadraticCrossSection Modelica.Magnetic.FluxTubes.Examples.BasicExamples Educational example: iron core with airgap
	IMC_Conveyor Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage and inverter driving a conveyor
	QuadraticCoreAirgap Modelica.Magnetic.QuasiStatic.FluxTubes.Examples.BasicExamples Educational example: iron core with airgap
	ToroidalCoreAirgap Modelica.Magnetic.QuasiStatic.FluxTubes.Examples.BasicExamples Educational example: iron core with airgap
	ToroidalCoreQuadraticCrossSection Modelica.Magnetic.QuasiStatic.FluxTubes.Examples.BasicExamples Educational example: iron core with airgap
	IMC_Conveyor Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage and inverter driving a conveyor
	PlanarLoops_analytic Modelica.Mechanics.MultiBody.Examples.Loops Mechanism with three planar kinematic loops and one degree-of-freedom with analytic loop handling (with JointRRR joints)
	Vehicle Modelica.Mechanics.Translational.Examples One-dimensional vehicle with driving resistances
	BatchPlant_StandardWater Modelica.Fluid.Examples.AST_BatchPlant Model of an experimental batch plant
	TestOpenTank Modelica.Thermal.FluidHeatFlow.Examples Test the OpenTank model
	TwoTanks Modelica.Thermal.FluidHeatFlow.Examples Two connected open tanks

Used in Components (118)

	OLine Modelica.Electrical.Analog.Lines Lossy Transmission Line
	M_OLine Modelica.Electrical.Analog.Lines Multiple OLine
	ULine Modelica.Electrical.Analog.Lines Lossy RC Line
	NMOS Modelica.Electrical.Analog.Semiconductors Simple NMOS transistor with heating port
	PMOS Modelica.Electrical.Analog.Semiconductors Simple PMOS transistor with heating port
	PermeanceActuator Modelica.Magnetic.FluxTubes.Examples.MovingCoilActuator.Components Detailed actuator model for rough magnetic design of actuator and system simulation
	SimpleSolenoid Modelica.Magnetic.FluxTubes.Examples.SolenoidActuator.Components Simple network model of a lifting magnet with planar armature end face
	AdvancedSolenoid Modelica.Magnetic.FluxTubes.Examples.SolenoidActuator.Components Advanced network model of a lifting magnet with planar armature end face, split magnetomotive force
	Transformer1PhaseWithHysteresis Modelica.Magnetic.FluxTubes.Examples.Hysteresis.Components Single-phase transformer with ferromagnetic core and hysteresis
	Transformer3PhaseYyWithHysteresis Modelica.Magnetic.FluxTubes.Examples.Hysteresis.Components Three-phase transformer in Yy configuration
	TranslatoryArmatureAndStopper Modelica.Magnetic.FluxTubes.Examples.Utilities Mass with free travel between two stoppers
	CoilDesign Modelica.Magnetic.FluxTubes.Examples.Utilities Calculation of winding parameters (wire diameter, number of turns et al.) and recalculation with optionally chosen parameters; to be adapted to particular design tasks
	ElectroMagneticConverterWithLeakageInductance Modelica.Magnetic.FluxTubes.Basic Electromagnetic energy conversion with a leakage inductance
	EddyCurrent Modelica.Magnetic.FluxTubes.Basic For modelling of eddy current in a conductive magnetic flux tube
	GenericFluxTube Modelica.Magnetic.FluxTubes.Shapes.FixedShape Flux tube with fixed cross-section and length; linear or non-linear material characteristics
	Cuboid Modelica.Magnetic.FluxTubes.Shapes.FixedShape Flux tube with rectangular cross-section; fixed shape; linear or non-linear material characteristics
	HollowCylinderAxialFlux Modelica.Magnetic.FluxTubes.Shapes.FixedShape (Hollow) cylinder with axial flux; fixed shape; linear or non-linear material characteristics
	HollowCylinderRadialFlux Modelica.Magnetic.FluxTubes.Shapes.FixedShape Hollow cylinder with radial flux; fixed shape; linear or non-linear material characteristics
	HollowCylinderCircumferentialFlux Modelica.Magnetic.FluxTubes.Shapes.FixedShape Hollow cylinder with circumferential flux; fixed shape; linear or non-linear material characteristics
	HollowCylinderAxialFlux Modelica.Magnetic.FluxTubes.Shapes.Force (Hollow) cylinder with axial flux; constant permeability
	HollowCylinderRadialFlux Modelica.Magnetic.FluxTubes.Shapes.Force Hollow cylinder with radial flux; constant permeability
	CuboidParallelFlux Modelica.Magnetic.FluxTubes.Shapes.Force Cuboid with flux in direction of motion, e.g., air gap with rectangular cross-section; constant permeability
	CuboidOrthogonalFlux Modelica.Magnetic.FluxTubes.Shapes.Force Cuboid with flux orthogonal to direction of motion; constant permeability
	LeakageAroundPoles Modelica.Magnetic.FluxTubes.Shapes.Force Leakage flux tube around cylindrical or prismatic poles
	QuarterCylinder Modelica.Magnetic.FluxTubes.Shapes.Leakage Leakage flux from one edge to the opposite plane through a quarter cylinder
	QuarterHollowCylinder Modelica.Magnetic.FluxTubes.Shapes.Leakage Leakage flux in circumferential direction through a quarter hollow cylinder
	HalfCylinder Modelica.Magnetic.FluxTubes.Shapes.Leakage Leakage flux through the edges of a half cylinder
	HalfHollowCylinder Modelica.Magnetic.FluxTubes.Shapes.Leakage Leakage flux in circumferential direction through a half hollow cylinder
	QuarterHollowSphere Modelica.Magnetic.FluxTubes.Shapes.Leakage Leakage flux through the edges of a quarter hollow sphere
	EighthOfHollowSphere Modelica.Magnetic.FluxTubes.Shapes.Leakage Leakage flux through one edge and the opposite plane of an eighth of a hollow sphere
	CoaxCylindersEndFaces Modelica.Magnetic.FluxTubes.Shapes.Leakage Leakage flux between the end planes of a inner solid cylinder and a coaxial outer hollow cylinder
	Force Modelica.Magnetic.FluxTubes.BaseClasses Base class for flux tubes with reluctance force generation; constant permeability
	Generic Modelica.Magnetic.FluxTubes.BaseClasses Partial Tellinen hysteresis model
	GenericHysteresis Modelica.Magnetic.FluxTubes.BaseClasses Partial hysteresis model
	EddyCurrent Modelica.Magnetic.QuasiStatic.FluxTubes.Basic For modelling of eddy current in a conductive magnetic flux tube
	GenericFluxTube Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape Flux tube with fixed cross-section, fixed length and linear material characteristics
	Cuboid Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape Flux tube with rectangular cross-section of fixed shape and linear material characteristics
	HollowCylinderAxialFlux Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape (Hollow) cylinder with axial flux of fixed shape and linear material characteristics
	HollowCylinderRadialFlux Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape Hollow cylinder with radial flux of fixed shape and linear material characteristics
	HollowCylinderCircumferentialFlux Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape Hollow cylinder with circumferential flux; fixed shape
	QuarterCylinder Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.Leakage Leakage flux from one edge to the opposite plane through a quarter cylinder
	QuarterHollowCylinder Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.Leakage Leakage flux in circumferential direction through a quarter hollow cylinder
	HalfCylinder Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.Leakage Leakage flux through the edges of a half cylinder
	HalfHollowCylinder Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.Leakage Leakage flux in circumferential direction through a half hollow cylinder
	QuarterHollowSphere Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.Leakage Leakage flux through the edges of a quarter hollow sphere
	EighthOfHollowSphere Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.Leakage Leakage flux through one edge and the opposite plane of an eighth of a hollow sphere
	CoaxCylindersEndFaces Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.Leakage Leakage flux between the end planes of a inner solid cylinder and a coaxial outer hollow cylinder
	FundamentalWavePermabilitySensor Modelica.Magnetic.QuasiStatic.FluxTubes.Sensors.Transient Sensor of fundamental wave permeability
	Permeability Modelica.Magnetic.QuasiStatic.FluxTubes.Sensors.Transient Determines permeability from flux and magnetic potential difference
	World Modelica.Mechanics.MultiBody World coordinate system + gravity field + default animation definition
	Cylinder Modelica.Mechanics.MultiBody.Examples.Loops.Utilities Cylinder with rod and crank of a combustion engine
	GasForce2 Modelica.Mechanics.MultiBody.Examples.Loops.Utilities Rough approximation of gas force in a combustion engine's cylinder
	CylinderBase Modelica.Mechanics.MultiBody.Examples.Loops.Utilities One cylinder with analytic handling of kinematic loop
	LineForceWithMass Modelica.Mechanics.MultiBody.Forces General line force component with an optional point mass on the connection line
	LineForceWithTwoMasses Modelica.Mechanics.MultiBody.Forces General line force component with two optional point masses on the connection line
	Spring Modelica.Mechanics.MultiBody.Forces Linear translational spring with optional mass
	SpringDamperParallel Modelica.Mechanics.MultiBody.Forces Linear spring and linear damper in parallel
	SpringDamperSeries Modelica.Mechanics.MultiBody.Forces Linear spring and linear damper in series connection
	SphericalSpherical Modelica.Mechanics.MultiBody.Joints Spherical - spherical joint aggregation (1 constraint, no potential states) with an optional point mass in the middle
	JointUPS Modelica.Mechanics.MultiBody.Joints.Assemblies Universal - prismatic - spherical joint aggregation (no constraints, no potential states)
	JointSSR Modelica.Mechanics.MultiBody.Joints.Assemblies Spherical - spherical - revolute joint aggregation with mass (no constraints, no potential states)
	JointSSP Modelica.Mechanics.MultiBody.Joints.Assemblies Spherical - spherical - prismatic joint aggregation with mass (no constraints, no potential states)
	Fixed Modelica.Mechanics.MultiBody.Parts Frame fixed in the world frame at a given position
	FixedTranslation Modelica.Mechanics.MultiBody.Parts Fixed translation of frame_b with respect to frame_a
	FixedRotation Modelica.Mechanics.MultiBody.Parts Fixed translation followed by a fixed rotation of frame_b with respect to frame_a
	BodyShape Modelica.Mechanics.MultiBody.Parts Rigid body with mass, inertia tensor, different shapes for animation, and two frame connectors (12 potential states)
	BodyBox Modelica.Mechanics.MultiBody.Parts Rigid body with box shape. Mass and animation properties are computed from box data and density (12 potential states)
	BodyCylinder Modelica.Mechanics.MultiBody.Parts Rigid body with cylinder shape. Mass and animation properties are computed from cylinder data and density (12 potential states)
	FixedShape2 Modelica.Mechanics.MultiBody.Visualizers Visualizing an elementary shape with dynamically varying shape attributes (has two frame connectors)
	FixedFrame Modelica.Mechanics.MultiBody.Visualizers Visualizing a coordinate system including axes labels (visualization data may vary dynamically)
	FixedArrow Modelica.Mechanics.MultiBody.Visualizers Visualizing an arrow with dynamically varying size in frame_a
	VoluminousWheel Modelica.Mechanics.MultiBody.Visualizers Visualizing a voluminous wheel
	PipeWithScalarField Modelica.Mechanics.MultiBody.Visualizers Visualizing a pipe with scalar field quantities along the pipe axis
	PipeWithScalarField Modelica.Mechanics.MultiBody.Visualizers.Advanced Visualizing a pipe with a scalar field
	Lines Modelica.Mechanics.MultiBody.Visualizers.Internal Visualizing a set of lines as cylinders with variable size, e.g., used to display characters (no Frame connector)
	SpringDamper Modelica.Mechanics.Translational.Examples.Utilities Input/output block of a spring/damper model
	Spring Modelica.Mechanics.Translational.Examples.Utilities Input/output block of a spring model
	SpringDamperNoRelativeStates Modelica.Mechanics.Translational.Examples.Utilities Linear 1D translational spring and damper in parallel (s and v are not used as states)
	Vehicle Modelica.Mechanics.Translational.Components Simple vehicle model
	PartialRigid Modelica.Mechanics.Translational.Interfaces Rigid connection of two translational 1D flanges
	PartialElementaryOneFlangeAndSupport2 Modelica.Mechanics.Translational.Interfaces Partial model for a component with one translational 1-dim. shaft flange and a support used for textual modeling, i.e., for elementary models
	PartialElementaryTwoFlangesAndSupport2 Modelica.Mechanics.Translational.Interfaces Partial model for a component with one translational 1-dim. shaft flange and a support used for textual modeling, i.e., for elementary models
	TankWithTopPorts Modelica.Fluid.Examples.AST_BatchPlant.BaseClasses Tank with inlet/outlet ports and with inlet ports at the top
	BasicHX Modelica.Fluid.Examples.HeatExchanger.BaseClasses Simple heat exchanger model
	WallConstProps Modelica.Fluid.Examples.HeatExchanger.BaseClasses Pipe wall with capacitance, assuming 1D heat conduction and constant material properties
	PartialStraightPipe Modelica.Fluid.Pipes.BaseClasses Base class for straight pipe models
	PartialTwoPortFlow Modelica.Fluid.Pipes.BaseClasses Base class for distributed flow models
	PartialStaggeredFlowModel Modelica.Fluid.Pipes.BaseClasses.FlowModels Base class for momentum balances in flow models
	NominalLaminarFlow Modelica.Fluid.Pipes.BaseClasses.FlowModels NominalLaminarFlow: Linear laminar flow for given nominal values
	PartialGenericPipeFlow Modelica.Fluid.Pipes.BaseClasses.FlowModels GenericPipeFlow: Pipe flow pressure loss and gravity with replaceable WallFriction package
	NominalTurbulentPipeFlow Modelica.Fluid.Pipes.BaseClasses.FlowModels NominalTurbulentPipeFlow: Quadratic turbulent flow in circular tubes for given nominal values
	PartialFlowHeatTransfer Modelica.Fluid.Pipes.BaseClasses.HeatTransfer Base class for any pipe heat transfer correlation
	PartialPipeFlowHeatTransfer Modelica.Fluid.Pipes.BaseClasses.HeatTransfer Base class for pipe heat transfer correlation in terms of Nusselt number heat transfer in a circular pipe for laminar and turbulent one-phase flow
	SharpEdgedOrifice Modelica.Fluid.Fittings Pressure drop due to sharp edged orifice (for both flow directions)
	Geometry Modelica.Fluid.Fittings.BaseClasses.Orifices.ThickEdgedOrifice Geometric data for a thick edged orifice
	PartialLumpedFlow Modelica.Fluid.Interfaces Base class for a lumped momentum balance
	PartialDistributedFlow Modelica.Fluid.Interfaces Base class for a distributed momentum balance
	kc_flatTube_IN_con Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger Input record for function kc_flatTube and kc_flatTube_KC
	kc_roundTube_IN_con Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger Input record for function kc_roundTube and kc_roundTube_KC
	kc_turbulent_IN_con Modelica.Fluid.Dissipation.HeatTransfer.StraightPipe Input record for function kc_turbulent and kc_turbulent_KC
	dp_turbulent_IN_con Modelica.Fluid.Dissipation.PressureLoss.StraightPipe Input record for function dp_turbulent_DP and dp_turbulent_MFLOW
	TwoPhaseFlow_con Modelica.Fluid.Dissipation.Utilities.Records.General Base record for two phase Flow
	EvenGap Modelica.Fluid.Dissipation.Utilities.Records.HeatTransfer Input for even gap
	General Modelica.Fluid.Dissipation.Utilities.Records.HeatTransfer Input for generic correlation
	HelicalPipe Modelica.Fluid.Dissipation.Utilities.Records.HeatTransfer Input for helical pipe
	Plate Modelica.Fluid.Dissipation.Utilities.Records.HeatTransfer Input for plate
	StraightPipe Modelica.Fluid.Dissipation.Utilities.Records.HeatTransfer Input for straight pipe
	TwoPhaseFlowHT_IN_con Modelica.Fluid.Dissipation.Utilities.Records.HeatTransfer Base record for two phase heat transfer coefficient
	Geometry Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss Input for several geometries of internal flow
	Orifice Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss Input for orifice
	StraightPipe Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss Input for straight pipe
	Diffuser Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss Input for diffuser
	EdgedBend Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss Input for bend
	SuddenChange Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss Input for sudden change of diameter
	Pipe Modelica.Thermal.FluidHeatFlow.Components Pipe with optional heat exchange
	OpenTank Modelica.Thermal.FluidHeatFlow.Components Model of a tank under ambient pressure
	Cylinder Modelica.Thermal.FluidHeatFlow.Components Simple model of a piston in a cylinder
	PartialShape Modelica.Utilities.Internal.PartialModelicaServices.Animation Interface for 3D animation of elementary shapes

Extended by (13)

	CoherenceLength Modelica.Units.SI
	LondonPenetrationDepth Modelica.Units.SI
	MigrationLength Modelica.Units.SI
	DiffusionLength Modelica.Units.SI
	MeanFreePath Modelica.Units.SI
	Diameter Modelica.Units.SI
	Radius Modelica.Units.SI
	Thickness Modelica.Units.SI
	Height Modelica.Units.SI
	Breadth Modelica.Units.SI
	Distance Modelica.Units.SI
	Position Modelica.Units.SI
	PathLength Modelica.Units.SI