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Orifice Class

An orifice is a structure of arbitrary shape.
Inheritance Hierarchy

Namespace:  DHI.Mike1D.StructureModule
Assembly:  DHI.Mike1D.StructureModule (in DHI.Mike1D.StructureModule.dll) Version: 19.0.0.0 (11.1.1.1111)
Syntax
public class Orifice : ValvedStructure, IOrifice, 
	IValvedStructure, IStructure, IDoubleProxy, IQuantityProxy, IControllable, 
	ITimeStructure, IModelStateReadWrite

The Orifice type exposes the following members.

Constructors
  NameDescription
Public methodOrifice
Initializes a new instance of the Orifice class
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Properties
  NameDescription
Public propertydDischargedDownStreamWaterLevel
Calculated Discharge derivative with DownStreamWaterLevel. Downstream is relative to the direction of chainage. The value is calculated by SetWaterLevels. Unit: [m^2/s]
(Inherited from Structure.)
Public propertydDischargedUpStreamWaterLevel
Calculated Discharge derivative with UpStreamWaterLevel. Upstream is relative to the direction of chainage. The value is calculated by SetWaterLevels. Unit: [m^2/s]
(Inherited from Structure.)
Public propertyDischarge
Calculated Discharge. The value is calculated by SetWaterLevels. Unit: [m^3/s]
(Inherited from Structure.)
Public propertyDischargeCoefficient
Set scale factor for total discharge through orifice
Public propertyDownstreamBottomLevel
Set downstream bottom level.

On a structure reach, if this is not set, (i.e. if having the default value of MinValue), the bottom level of the downstream node is used.

Also disable UseUpAndDownstreamCrossSection to enable this

Public propertyDownstreamCrossSection
Set downstream cross section
Public propertyDownstreamTopLevel
Set downstream top level.

On a structure reach, if this is not set, (i.e. if having the default value of MinValue), the ground level of the downstream node is used, and the downstream node must be a node with volume.

Also disable UseUpAndDownstreamCrossSection to enable this

Public propertyDownstreamWaterLevel
Downstream water level.Downstream refers to the direction of chainage. The water level is set by use of SetWaterLevels Unit: [m]
(Inherited from Structure.)
Public propertyDownstreamXsDisplacement
Set downstream cross section displacement A positive value displaces the cross section to the right when looking from the upstream direction
Public propertyExtensionData
Property used by (de)serializer, when it can not find proper target for a data field. Support of forward compatible data contracts.
(Inherited from Structure.)
Public propertyFlowArea
Flow area through structure. Used by most (but not all) structures.
(Inherited from Structure.)
Public propertyFlowFactor
The discharge (and discharge derivatives) are scaled by the flow factor.
(Inherited from Structure.)
Public propertyGateLevel
Actual gate level. Type: River Structure Geometry Unit: [m]

this is not a setup parameter, but a run parameter, which will change during the run (if the gate is controlled). If the gate is not explicitly controlled, this can be used to change the gate (manual/user defined control).

Public propertyGatePolygons
Shape of gates as polygons. Gate polygons can move in between MinGateLevel and MaxGateLevel.

Y coordinates of gate polygons are relative to MinGateLevel

If changing gate level properties during runtime, be sure to update internal state by calling PrepareForGate

Public propertyID
Structure ID
(Inherited from Structure.)
Public propertyIDInUserUnit
Used to get a consistent description of the structure. The ID comes in user units. Used e.g. when reporting errors, warnings and hints.
(Inherited from Structure.)
Public propertyImplicit
Flag to control if the structure is implicit or explicit. If the structure is explicit (Implicit == false) then the derivatives of the dicharge are always zero. Default value: true
(Inherited from Structure.)
Public propertyInitialGateLevel
Initial value of the gate level. Type: River Structure Geometry Unit: [m]
Public propertyInvertLevelDownstream
Invert level down stream
(Overrides StructureInvertLevelDownstream.)
Public propertyInvertLevelUpstream
Invert level up stream
(Overrides StructureInvertLevelUpstream.)
Public propertyLength
Length of the structure. Unit: [m] Default value: 0m
(Inherited from Structure.)
Public propertyLocation
Location property.
(Inherited from Structure.)
Public propertyMaxGateLevel
Maximum allowed gate level

If changing gate level properties during runtime, be sure to update internal state by calling PrepareForGate

Public propertyMaxGateLevelDecreaseSpeed
Maximum speed of lowering gate/weir
Public propertyMaxGateLevelIncreaseSpeed
Maximum speed of rising gate/weir
Public propertyMinGateLevel
Minimum allowed gate level.

If changing gate level properties during runtime, be sure to update internal state by calling PrepareForGate

Public propertyOrificePolygons
Shape of the opening
Public propertyRunTimeDiagnostics
The getter is used to get a list of errors.
(Inherited from Structure.)
Public propertySideStructureBank
Bank side that side-structure is located on

If side structure contains reservoir, and has the Coordinate set, this is not used (and should be set to Undefined).

(Inherited from Structure.)
Public propertySideStructureReservoir
Reservoir at end of side structure. Null if not side structure, or no reservoir is defined
(Inherited from Structure.)
Public propertyStructureType
Type of structure
(Inherited from Structure.)
Public propertyTopoID
String used to identified cross sections
(Inherited from Structure.)
Public propertyType
Structure type, unique for each type structure.
(Overrides StructureType.)
Public propertyUpstreamBottomLevel
Set upstream bottom level.

On a structure reach, if this is not set, (i.e. if having the default value of MinValue), the bottom level of the upstream node is used.

Also disable UseUpAndDownstreamCrossSection to enable this

Public propertyUpstreamCrossSection
Set upstream cross section
Public propertyUpstreamTopLevel
Set downstream top level. Not used if _useUpAndDownstreamCrossSection

On a structure reach, if this is not set, (i.e. if having the default value of MinValue), the ground level of the upstream node is used, and the upstream node must be a node with volume.

Also disable UseUpAndDownstreamCrossSection to enable this

Public propertyUpstreamWaterLevel
Upstream water level. Upstream refers to the direction of chainage. The water level is set by use of SetWaterLevels Unit: [m]
(Inherited from Structure.)
Public propertyUpstreamXsDisplacement
Set upstream cross section displacement A positive value displaces the cross section to the right when looking from the upstream direction
Public propertyUseUpAndDownstreamCrossSection
Flag specifying whether to use upstream and downstream cross section for geometry, or whether to use the 4 geometry parameters: UpstreamBottomLevel, DownstreamBottomLevel, UpstreamTopLevel, DownstreamTopLevel.

If setting this to false, all the 4 geometry parameters must be set manually

Public propertyValve
Type of the valve Default: None
(Inherited from ValvedStructure.)
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Methods
  NameDescription
Public methodAccepts
List of data types that is accepted, i.e., that you can get a ValueSetter for.
(Inherited from Structure.)
Public methodAddGatePolygon
Add a polygon to the shape of the gate
Public methodAddOrificePolygon
Add a polygon to the shape of the orifice
Protected methodApplyFlowFactor
Applies flow factor to discharge and it's derivatives
(Inherited from Structure.)
Public methodControlClose
Close orifice
Public methodControlOpen
Open orifice
Public methodControlSetFlowFactor
Set flow factor to specified value
(Inherited from Structure.)
Public methodControlSetGateLevel
Control the gate, set gate level to specified value
Public methodDescription
Return a string that describes this structure. Includes structure type and ID
(Inherited from Structure.)
Public methodDispose
Frees the licenses held.
(Inherited from Structure.)
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodExplicitStructureSupport
DEBUG: This method is called from Prepare() if _implitcit == false to check if the structure supports being Explicit. Once all structures support explicit operation this method can be deleted.
(Overrides StructureExplicitStructureSupport.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetControlAction
Get control action for the specified id. It always returns one of the ActionControl delegates. It will return null if controlActionId is not valid.

Base implementation for IControllable

(Overrides StructureGetControlAction(String).)
Public methodGetCurrentValue
Get the current value of the control for the specified id.

Base implementation for IControllable

(Overrides StructureGetCurrentValue(String).)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodInitialize(IDiagnostics)
Set up structure and set runtime diagnostics object
(Inherited from Structure.)
Public methodInitialize(ICrossSection, ICrossSection, Boolean, IDiagnostics)
Set up structure and set runtime diagnostics object
(Overrides StructureInitialize(ICrossSection, ICrossSection, Boolean, IDiagnostics).)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodOffers
A list of quantities available from this structure
(Inherited from Structure.)
Public methodPrepare(HDParameterData, IDiagnostics)
Set up structure and set runtime diagnostics object
(Overrides StructurePrepare(HDParameterData, IDiagnostics).)
Public methodPrepare(DateTime, HDParameterData, IDiagnostics)
Set up structure and set runtime diagnostics object
(Inherited from Structure.)
Public methodPrepareForGate
Set orifice discharge for al positions of the gate. If a control is active (a weir or gate is present) then this must be called after: 1) Prepare() 2) Gate polygons have been defined 3) MaxGateLevel and MinGateLevel have been set.

This is called automatically in prepare. It must be called explicitly if gate polygons or max/min gate level are changed after the prepare step

Public methodPrepareTimeStep
Setter for controllable structure. Used by the control module. Can safely be called multiple times with the same timeN.
Public methodReadState
Read state and apply to module. Returns true if state was successfully read.
Public methodResetControlledState
Reset internal state (if any) used by controlling class. Called after a controlling class has performed a control sequence, and simulation is restarted.

Base implementation for IControllable

(Overrides StructureResetControlledState.)
Public methodSetControlStrategyId
Set control strategy ID manually.

Base implementation for IControllable

(Inherited from Structure.)
Protected methodSetInputWaterLevels (Inherited from Structure.)
Public methodSetWaterLevels
Sets up- and down- stream water level and forces the calculation of the discharge and its derivatives.
(Overrides StructureSetWaterLevels(Double, Double).)
Protected methodSetZeroFlow
Sets the conditions for zero flow
(Inherited from Structure.)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodUpdatedWaterLevels
After a time step (or iteration) has finished, update the discharge to the actual value, based on the final water levels and the discharge derivatives.
(Inherited from Structure.)
Public methodValidate
Writes errors, warnings and hints into their respective member classes. The member objects are initially cleared.
(Overrides StructureValidate.)
Public methodValueGetter
Get value setter for the specified data quantity
(Overrides StructureValueGetter(Int32).)
Public methodValueSetter
Get value setter for the specified data type
(Inherited from Structure.)
Protected methodValveDecidesFlow
Decides whether the valve will decide the flow and sets the flow to zero in case the valve forbids flow.
(Inherited from ValvedStructure.)
Public methodWriteState
Write current state of module
Protected methodZeroFlowDueToValve
Decides wheather the valve will prevent flow given the flow direction.
(Inherited from ValvedStructure.)
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Fields
  NameDescription
Protected field_accepts
List of quantities that are accepted
(Inherited from Structure.)
Protected field_controlStategyId
If the structure is being controlled, then _controlStategyId contains the ID of the active control strategy
(Inherited from Structure.)
Protected field_downstreamWaterLevel
Downstream water level, as set by SetWaterLevels(Double, Double) Unit: [m]
(Inherited from Structure.)
Protected field_dqdhDownstream
The derivative of flow through the structure with downstream water level. The flow is calculated in the derived classes when the SetWaterLevels method is called. Unit: [m2/sec]
(Inherited from Structure.)
Protected field_dqdhUpstream
The derivative of flow through the structure with upstream water level. The flow is calculated in the derived classes when the SetWaterLevels method is called. Unit: [m2/sec]
(Inherited from Structure.)
Protected field_flowArea
Flow area through structure. Used by most (but not all) structures.
(Inherited from Structure.)
Protected field_flowDir
FlowDir is used to determine which parameters to use for the flow calculations. Derived by the SetWaterLevels(Double, Double).
(Inherited from Structure.)
Protected field_id
Identification name of the structure
(Inherited from Structure.)
Protected field_implicit
If _implicit == false, then the derivatives are always zero. Default value: true.
(Inherited from Structure.)
Protected field_location
Location in the network
(Inherited from Structure.)
Protected field_offers
List of quantities that are offered
(Inherited from Structure.)
Protected field_q
Flow through the structure. The flow is calculated in the derived classes when the SetWaterLevels method is called. Unit: [m3/sec]
(Inherited from Structure.)
Protected field_runTimeDiagnostics
Diagnostics are written into this Diagnostics during calculations. Set during Initialize(IDiagnostics)
(Inherited from Structure.)
Protected field_topoID
Identification used to find referenced cross sections
(Inherited from Structure.)
Protected field_upstreamWaterLevel
Upstream water level, as set by SetWaterLevels(Double, Double) Unit: [m]
(Inherited from Structure.)
Protected field_valveType
Type of the valve Default: None
(Inherited from ValvedStructure.)
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Extension Methods
  NameDescription
Public Extension MethodGetter

From the proxy, return an FuncTResult for the specified quantity.

It returns the first quantity of that type that is offered, and null if the quantity is not offered.

(Defined by ProxyExtensions.)
Public Extension MethodGetters
Returns a set of FuncTResult for the quantity. We can return several quantities with the same id (usually they will differ in their description). If the quantity is not offerent, an empty list is returned.
(Defined by ProxyExtensions.)
Public Extension MethodGettersFraction
Returns a set of FuncT, TResult for the quantity. We can return several quantities with the same id (usually they will differ in their description). If the quantity is not offerent, an empty list is returned.
(Defined by ProxyExtensions.)
Public Extension MethodGetterUnboxed

From the proxy, return an FuncTResult for the specified quantity.

It returns the first quantity of that type that is offered, and null if the quantity is not offered.

(Defined by ProxyExtensions.)
Public Extension MethodInitialize(CrossSectionData, Boolean, IDiagnostics)Overloaded.
Helper function for some unit tests. Do not use.
(Defined by StructureExtensions.)
Public Extension MethodInitialize(BoundaryData, CrossSectionData, Boolean, IDiagnostics)Overloaded.
Helper function for some unit tests. Do not use.
(Defined by StructureExtensions.)
Public Extension MethodIsSideStructure
Returns true if the structure is a side structure
(Defined by StructureExtensions.)
Public Extension MethodSetter

From the proxy, return an IDoubleGetSet for the specified quantity.

It returns the first quantity of that type that is accepted, and null if the quantity is not accepted.

(Defined by ProxyExtensions.)
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See Also