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WOLFRAM SYSTEM MODELER

Pressure

Wolfram Language

In[1]:=

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

Out[1]:=

Type Information

Pressure	Quantity: "Pressure" Unit: Pa Display Unit: bar

Pressure

Quantity: "Pressure"

Unit: Pa

Display Unit: bar

Used in Examples (7)

	PsychrometricData Modelica.Media.Examples Produces plot data for psychrometric charts
	MoistAir Modelica.Media.Examples.ReferenceAir Example for moist air
	Inverse_sh_T Modelica.Media.Examples.ReferenceAir Solve h = h_pT(p, T), s = s_pT(p, T) for T, if h or s is given
	Inverse_sh_TX Modelica.Media.Examples.ReferenceAir Solve h = h_pTX(p, T, X), s = s_pTX(p, T, X) for T, if h or s is given
	Inverse_sh_T Modelica.Media.Examples.SolveOneNonlinearEquation Solve h = h_T(T), s = s_T(T) for T, if h or s is given for ideal gas NASA
	Inverse_sh_TX Modelica.Media.Examples.SolveOneNonlinearEquation Solve h = h_TX(TX) for T, if h is given for ideal gas NASA
	WaterPump Modelica.Thermal.FluidHeatFlow.Examples Water pumping station

Used in Components (53)

	PartialStaggeredFlowModel Modelica.Fluid.Pipes.BaseClasses.FlowModels Base class for momentum balances in flow models
	PartialPump Modelica.Fluid.Machines.BaseClasses Base model for centrifugal pumps
	PumpMonitoringNPSH Modelica.Fluid.Machines.BaseClasses.PumpMonitoring Monitor Net Positive Suction Head (NPSH)
	ValveVaporizing Modelica.Fluid.Valves Valve for possibly vaporizing (almost) incompressible fluids, accounts for choked flow conditions
	PartialValve Modelica.Fluid.Valves.BaseClasses Base model for valves
	SimpleGenericOrifice Modelica.Fluid.Fittings Simple generic orifice defined by pressure loss coefficient and diameter (only for flow from port_a to port_b)
	BaseModel Modelica.Fluid.Fittings.BaseClasses.QuadraticTurbulent Generic pressure drop component with constant turbulent loss factor data and without an icon
	BaseModelNonconstantCrossSectionArea Modelica.Fluid.Fittings.BaseClasses.QuadraticTurbulent Generic pressure drop component with constant turbulent loss factor data and without an icon, for non-constant cross section area
	PartialTwoPortTransport Modelica.Fluid.Interfaces Partial element transporting fluid between two ports without storage of mass or energy
	dp_idealGas_IN_con Modelica.Fluid.Dissipation.PressureLoss.General Input record for function dp_idealGas_DP and dp_idealGas_MFLOW
	dp_pressureLossCoefficient_IN_con Modelica.Fluid.Dissipation.PressureLoss.General Input record for function dp_pressureLossCoefficient_DP and dp_pressureLossCoefficient_MFLOW
	dp_volumeFlowRate_IN_con Modelica.Fluid.Dissipation.PressureLoss.General Input record for function dp_volumeFlowRate_DP and dp_volumeFlowRate_MFLOW
	dp_thickEdgedOverall_IN_con Modelica.Fluid.Dissipation.PressureLoss.Orifice Input record for function dp_thickEdgedOverall_DP and dp_thickEdgedOverall_MFLOW
	dp_severalGeometryOverall_IN_con Modelica.Fluid.Dissipation.PressureLoss.Valve Input record for function dp_severalGeometryOverall_DP and dp_severalGeometryOverall_MFLOW
	IdealGas_var Modelica.Fluid.Dissipation.Utilities.Records.General Base record for generic pressure loss function \| ideal gas \| mean density
	NominalDensityViscosity Modelica.Fluid.Dissipation.Utilities.Records.General Base record for generic pressure loss function
	NominalPressureLossLawDensity_con Modelica.Fluid.Dissipation.Utilities.Records.General Base record for generic pressure loss function
	IdealGas Modelica.Fluid.Dissipation.Utilities.Records.General Base record for generic pressure loss function \| ideal gas \| mean density
	NominalPressureLossLawDensity Modelica.Fluid.Dissipation.Utilities.Records.General Base record for generic pressure loss function
	TwoPhaseFlowHT_IN_con Modelica.Fluid.Dissipation.Utilities.Records.HeatTransfer Base record for two phase heat transfer coefficient
	TwoPhaseFlowHT_IN_var Modelica.Fluid.Dissipation.Utilities.Records.HeatTransfer Base record for two phase heat transfer coefficient
	PressureLossInput Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss Input for pressure loss calculation
	Diffuser Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss Input for diffuser
	ShortPipe Modelica.Media.Examples.Utilities Simple pressure loss in pipe
	ThermoBaseVars Modelica.Media.Common.ThermoFluidSpecial
	ThermoProperties Modelica.Media.Common.ThermoFluidSpecial Thermodynamic base property data for all state models
	ThermoProperties_dT Modelica.Media.Common.ThermoFluidSpecial Thermodynamic property data for density d and temperature T as dynamic states
	SaturationProperties Modelica.Media.Common Properties in the two phase region
	IF97BaseTwoPhase Modelica.Media.Common Intermediate property data record for IF 97
	GibbsDerivs Modelica.Media.Common Derivatives of dimensionless Gibbs-function w.r.t. dimensionless pressure and temperature
	NewtonDerivatives_ph Modelica.Media.Common Derivatives for fast inverse calculations of Helmholtz functions: p & h
	NewtonDerivatives_ps Modelica.Media.Common Derivatives for fast inverse calculation of Helmholtz functions: p & s
	NewtonDerivatives_pT Modelica.Media.Common Derivatives for fast inverse calculations of Helmholtz functions:p & T
	BridgmansTables Modelica.Media.Common Calculates all entries in Bridgmans tables if first seven variables given
	AuxiliaryProperties Modelica.Media.Common Intermediate property data record
	GibbsDerivs2 Modelica.Media.Common Derivatives of Gibbs function w.r.t. pressure and temperature
	BaseProps_Tpoly Modelica.Media.Incompressible.Common Fluid state record
	InverseDerivatives_rhoT Modelica.Media.R134a.Common Derivatives required for inversion of density and temperature functions w.r.t. pressure and enthalpy states
	crit Modelica.Media.R134a.R134aData
	fcrit Modelica.Media.R134a.R134aData
	triple Modelica.Media.R134a.R134aData
	data Modelica.Media.Water.IF97_Utilities.BaseIF97 Constant IF97 data and region limits
	critical Modelica.Media.Water.IF97_Utilities.BaseIF97 Critical point data
	triple Modelica.Media.Water.IF97_Utilities.BaseIF97 Triple point data
	Valve Modelica.Thermal.FluidHeatFlow.Components Simple valve
	OpenTank Modelica.Thermal.FluidHeatFlow.Components Model of a tank under ambient pressure
	OneWayValve Modelica.Thermal.FluidHeatFlow.Components Simple one-way valve
	Ambient Modelica.Thermal.FluidHeatFlow.Sources Ambient with constant properties
	AbsolutePressure Modelica.Thermal.FluidHeatFlow.Sources Defines absolute pressure level
	PressureIncrease Modelica.Thermal.FluidHeatFlow.Sources Enforces constant pressure increase
	IdealPump Modelica.Thermal.FluidHeatFlow.Sources Model of an ideal pump
	TwoPort Modelica.Thermal.FluidHeatFlow.BaseClasses Partial model of two port
	SimpleFriction Modelica.Thermal.FluidHeatFlow.BaseClasses Simple friction model

Extended by (2)

PressureDifference

Modelica.Units.SI

AbsolutePressure

Modelica.Units.SI