Standard package icon.
Extends from Modelica.Icons.Package
(Icon for standard packages).
Name | Description |
---|---|
SimpleBend | Bend |
SimpleElbow | Elbow |
SimpleExpansionContraction | Sudden Expansion / Contraction |
The component Bend is a valid model for Bend angle between 15° and 180°.
Please consider: The component was modeled in order to consider the pressure losses of well rounded bends. However, the use of the component can lead to extremely long simulation times, since a small stepsize must be selected due to the low resistance of an elbow.
Formulas are taken from W. Wagner, Strömung und Druckverlust, 7. Auflage 2012.
Type | Name | Default | Description |
---|---|---|---|
Length | Diameter | 0.032 | Diameter |
Angle | BendAngle | 0.5 * Modelica.Constants.pi | Bend angle |
Length | BendRadius | 0.1 | Bend radius |
DimensionlessRatio | relRoughness | 1e-6 | Relative roughness |
Boolean | forwardFluidProperties | true | Forward fluid properties between ports |
Type | Name | Description |
---|---|---|
FluidPort | fluidPortA | Hydraulic port A |
FluidPort | fluidPortB | Hydraulic port B |
The component Elbow is a valid model for Elbow angle between 30° and 120°.
Please consider: The component was modeled in order to consider the pressure losses of sharp edged elbows. However, the use of the component can lead to extremely long simulation times, since a small stepsize must be selected due to the low resistance of an elbow.
Formulas are taken from W. Wagner, Strömung und Druckverlust, 7. Auflage 2012, and Will, D., Hydraulik, Grundlagen, Komponenten, Schaltungen, 5. Auflage 2011.
Type | Name | Default | Description |
---|---|---|---|
Length | Diameter | 0.032 | Diameter |
Angle | Angle | 0.5 * Modelica.Constants.pi | Elbow angle |
Boolean | forwardFluidProperties | true | Forward fluid properties between ports |
Type | Name | Description |
---|---|---|
FluidPort | fluidPortA | Hydraulic port A |
FluidPort | fluidPortB | Hydraulic port B |
The component ExpansionContraction is a model of a cross section enlargement (diffusor) or a cross section reduction (nozzle). It depends on the flow direction.
The component computes the loss number zeta
according to the following equations:
Borda-Carnot Equation
Formulas are taken from E. Truckenbrodt, Fluidmechanik, Band 1: Grundlagen und elementare Strömungsvorgänge dichtebeständiger Fluide, 4. Auflage, 2008.
Extends from HydraulicsByFluidon.Components.Base.HydTwoPortVertical
.
Type | Name | Default | Description |
---|---|---|---|
Length | D1 | 0.016 | Diameter 1 |
Length | D2 | 0.05 | Diameter 2 |
Boolean | forwardFluidProperties | true | Forward fluid properties between ports |
Type | Name | Description |
---|---|---|
FluidPort | fluidPortA | Hydraulic port A |
FluidPort | fluidPortB | Hydraulic port B |