WOLFRAM SYSTEMMODELER

Pressure

Wolfram Language

In[1]:=
SystemModel["Modelica.SIunits.Pressure"]
Out[1]:=

Type Information

Real

Quantity: Pressure

Unit: Pa

Display Unit: bar

Used in Examples (8)

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

InverseIncompressible_sh_T

Modelica.Media.Examples.SolveOneNonlinearEquation

Inverse computation for incompressible media

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 (55)

GasForce

Modelica.Mechanics.MultiBody.Examples.Loops.Utilities

Simple gas force computation for combustion engine

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

ShortPipe

Modelica.Media.Examples.Tests.Components

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

SimpleFriction

Modelica.Thermal.FluidHeatFlow.Interfaces.Partials

Simple friction model

TwoPort

Modelica.Thermal.FluidHeatFlow.Interfaces.Partials

Partial model of two port

Extended by (2)

PressureDifference

Modelica.SIunits

AbsolutePressure

Modelica.SIunits