Orifice Class

An orifice is a structure of arbitrary shape.

Definition

Namespace: DHI.Mike1D.StructureModule
Assembly: DHI.Mike1D.StructureModule (in DHI.Mike1D.StructureModule.dll) Version: 24.0.0.0 (11.1.1.1111)
C#
public class Orifice : ValvedStructure, IOrifice, 
	IValvedStructure, IStructure, IDoubleProxy, IQuantityProxy, IControllable, 
	ITimeStructure, IModelStateReadWrite
Inheritance
Object    Structure    ValvedStructure    Orifice
Implements
IControllable, IDoubleProxy, IQuantityProxy, IModelStateReadWrite, IOrifice, IStructure, ITimeStructure, IValvedStructure

Constructors

OrificeInitializes a new instance of the Orifice class

Properties

BladeType Orifice blade type
dDischargedDownStreamWaterLevel 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)
dDischargedUpStreamWaterLevel 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)
Discharge Calculated Discharge. The value is calculated by SetWaterLevels. Unit: [m^3/s]
(Inherited from Structure)
DischargeCoefficient Set scale factor for total discharge through orifice
DownstreamBottomLevel 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

DownstreamCrossSection Set downstream cross section
DownstreamTopLevel 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

DownstreamWaterLevel Downstream water level.Downstream refers to the direction of chainage. The water level is set by use of SetWaterLevels Unit: [m]
(Inherited from Structure)
DownstreamXsDisplacement Set downstream cross section displacement A positive value displaces the cross section to the right when looking from the upstream direction
EnableCheckFlowDirectionOscillations Flag indicating whether to use special check and damping for structure discharge oscillating around zero.
(Inherited from Structure)
ExtensionData 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)
FlowArea Flow area through structure. Used by most (but not all) structures.
(Inherited from Structure)
FlowFactor The discharge (and discharge derivatives) are scaled by the flow factor.
(Inherited from Structure)
GateLevel 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).

GatePolygons 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

ID Structure ID
(Inherited from Structure)
IDInUserUnit 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)
Implicit 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)
InitialGateLevel Initial value of the gate level. Type: River Structure Geometry Unit: [m]
InvertLevelDownstream Invert level down stream
(Overrides StructureInvertLevelDownstream)
InvertLevelUpstream Invert level up stream
(Overrides StructureInvertLevelUpstream)
Length Length of the structure. Unit: [m] Default value: 0m
(Inherited from Structure)
Location Location property.
(Inherited from Structure)
MaxGateLevel Maximum allowed gate level

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

MaxGateLevelDecreaseSpeed Maximum speed of lowering gate/weir
MaxGateLevelIncreaseSpeed Maximum speed of rising gate/weir
MinGateLevel Minimum allowed gate level.

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

OrificePolygons Shape of the opening
RunTimeDiagnostics The getter is used to get a list of errors.
(Inherited from Structure)
SideStructureBank 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)
SideStructureReservoir Reservoir at end of side structure. Null if not side structure, or no reservoir is defined
(Inherited from Structure)
SmoothingFactor Exponential smoothing factor for structure discharge. The smoothing factor is the weight of the previous discharge on the new discharge: q = (1 - SmoothingFactor) * qStructure + SmoothingFactor * qPrevious
(Inherited from Structure)
StructureType Type of structure
(Inherited from Structure)
TopLevel Top level of an orifice
TopoID String used to identified cross sections
(Inherited from Structure)
Type Structure type, unique for each type structure.
(Overrides StructureType)
UpstreamBottomLevel 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

UpstreamCrossSection Set upstream cross section
UpstreamTopLevel 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

UpstreamWaterLevel Upstream water level. Upstream refers to the direction of chainage. The water level is set by use of SetWaterLevels Unit: [m]
(Inherited from Structure)
UpstreamXsDisplacement Set upstream cross section displacement A positive value displaces the cross section to the right when looking from the upstream direction
UseUpAndDownstreamCrossSection 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

Valve Type of the valve Default: None
(Inherited from ValvedStructure)
WaterLevelDifferenceMinimal Water level difference below which it is assumed that structure has no flow.
(Inherited from Structure)

Methods

Accepts List of data types that is accepted, i.e., that you can get a ValueSetter for.
(Inherited from Structure)
AddGatePolygon Add a polygon to the shape of the gate
AddOrificePolygon Add a polygon to the shape of the orifice
AddToOffers Add additional offers to structure
(Inherited from Structure)
ApplyFlowFactor Applies flow factor to discharge and it's derivatives
(Inherited from Structure)
ControlClose Close orifice
ControlOpen Open orifice
ControlSetFlowFactor Set flow factor to specified value
(Inherited from Structure)
ControlSetGateLevel Control the gate, set gate level to specified value
Description Return a string that describes this structure. Includes structure type and ID
(Inherited from Structure)
Dispose Frees the licenses held.
(Inherited from Structure)
EqualsDetermines whether the specified object is equal to the current object.
(Inherited from Object)
ExplicitStructureSupport 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)
FinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object)
GetActionInfos List of control action infos
(Overrides StructureGetActionInfos)
GetControlAction 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))
GetCurrentValue Get the current value of the control for the specified id.

Base implementation for IControllable


(Overrides StructureGetCurrentValue(String))
GetHashCodeServes as the default hash function.
(Inherited from Object)
GetTypeGets the Type of the current instance.
(Inherited from Object)
Initialize(IDiagnostics) Set up structure and set runtime diagnostics object
(Inherited from Structure)
Initialize(ICrossSection, ICrossSection, Boolean, IDiagnostics) Set up structure and set runtime diagnostics object
(Overrides StructureInitialize(ICrossSection, ICrossSection, Boolean, IDiagnostics))
MemberwiseCloneCreates a shallow copy of the current Object.
(Inherited from Object)
Offers A list of quantities available from this structure
(Inherited from Structure)
Prepare(HDParameterData, IDiagnostics) Set up structure and set runtime diagnostics object
(Overrides StructurePrepare(HDParameterData, IDiagnostics))
Prepare(DateTime, HDParameterData, IDiagnostics) Set up structure and set runtime diagnostics object
(Inherited from Structure)
PrepareForGate 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

PrepareTimeStep Setter for controllable structure. Used by the control module. Can safely be called multiple times with the same timeN.
ReadState Read state and apply to module. Returns true if state was successfully read.
ResetControlledState 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)
SetControlStrategyId Set control strategy ID manually.

Base implementation for IControllable


(Inherited from Structure)
SetInputWaterLevels Set the _upstreamWaterLevel, _downstreamWaterLevel and _flowDir
(Inherited from Structure)
SetWaterLevels Sets up- and down- stream water level and forces the calculation of the discharge and its derivatives.
(Overrides StructureSetWaterLevels(Double, Double))
SetZeroFlow Sets the conditions for zero flow
(Inherited from Structure)
ToStringReturns a string that represents the current object.
(Inherited from Object)
UpdatedWaterLevels 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)
Validate Writes errors, warnings and hints into their respective member classes. The member objects are initially cleared.
(Overrides StructureValidate)
ValueGetter Get value setter for the specified data quantity
(Overrides StructureValueGetter(Int32))
ValueSetter Get value setter for the specified data type
(Inherited from Structure)
ValveDecidesFlow Decides whether the valve will decide the flow and sets the flow to zero in case the valve forbids flow.
(Inherited from ValvedStructure)
WriteState Write current state of module
ZeroFlowDueToValve Decides whether the valve will prevent flow given the flow direction.
(Inherited from ValvedStructure)

Fields

_accepts List of quantities that are accepted
(Inherited from Structure)
_controlStategyId If the structure is being controlled, then _controlStategyId contains the ID of the active control strategy
(Inherited from Structure)
_downstreamWaterLevel Downstream water level, as set by SetWaterLevels(Double, Double) Unit: [m]
(Inherited from Structure)
_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)
_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)
_flowArea Flow area through structure. Used by most (but not all) structures.
(Inherited from Structure)
_flowDir FlowDir is used to determine which parameters to use for the flow calculations. Derived by the SetWaterLevels(Double, Double).
(Inherited from Structure)
_id Identification name of the structure
(Inherited from Structure)
_implicit If _implicit == false, then the derivatives are always zero. Default value: true.
(Inherited from Structure)
_location Location in the network
(Inherited from Structure)
_offers List of quantities that are offered
(Inherited from Structure)
_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)
_runTimeDiagnostics Diagnostics are written into this Diagnostics during calculations. Set during Initialize(IDiagnostics)
(Inherited from Structure)
_topoID Identification used to find referenced cross sections
(Inherited from Structure)
_upstreamWaterLevel Upstream water level, as set by SetWaterLevels(Double, Double) Unit: [m]
(Inherited from Structure)
_valveType Type of the valve Default: None
(Inherited from ValvedStructure)

Extension Methods

GetControlActionInfo Get control action info for the specified id. It will return null if controlActionId is not valid.
(Defined by StructureExtensions)
Getter

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)
Getters 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)
GettersFraction 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)
GetterUnboxed

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)
Initialize Helper function for some unit tests. Do not use.
(Defined by StructureExtensions)
Initialize Helper function for some unit tests. Do not use.
(Defined by StructureExtensions)
IsSideStructure Returns true if the structure is a side structure
(Defined by StructureExtensions)
Setter

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)

See Also