modelParabolic_2Region_Normalized
Parabolic | 2 regions | Normalized
Extends from PartialFlowChar (Base class for pump flow characteristics. Extending class solves for head.).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real[3] | cs | Coefficients defining the equation: head = cs[1]*V_flow^2+cs[2]*V_flow+cs[3] | |
| Boolean | manual | false | |
| Boolean | high | true | |
| Real | HcDesign | 1.0 | |
| Internal Interface › Initialization | |||
| SI.VolumeFlowRate | V_flow_start (from PartialFlowChar) | ||
| SI.Height | head_start (from PartialFlowChar) | ||
| Internal Interface › Nominal Operating Parameters | |||
| Modelica.Units.NonSI.AngularVelocity_rpm | N_nominal (from PartialFlowChar) | Pump speed | |
| SI.Length | diameter_nominal (from PartialFlowChar) | Impeller Diameter | |
| SI.VolumeFlowRate | V_flow_nominal (from PartialFlowChar) | Nominal volumetric flow rate | |
| SI.Height | head_nominal (from PartialFlowChar) | Nominal head | |
| Advanced | |||
| Boolean | checkValve (from PartialFlowChar) | false | =true then no reverse flow |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.PressureDifference | dp (from PartialFlowChar) | ||
| Medium.ThermodynamicState | state (from PartialFlowChar) | Thermodynamic state | |
| Modelica.Units.NonSI.AngularVelocity_rpm | N (from PartialFlowChar) | Pump speed | |
| SI.Length | diameter (from PartialFlowChar) | Impeller Diameter | |
| SI.Height | head (from PartialFlowChar) | Pump pressure head | |
| SI.VolumeFlowRate | V_flow (from PartialFlowChar) | Flow rate | |
| Units.NonDim | affinityLaw_flow (from PartialFlowChar) | (N/N_nominal)*(diameter/diameter_nominal)^3 | Affinity law for scaling |
| Units.NonDim | affinityLaw_head (from PartialFlowChar) | (N/N_nominal)^2*(diameter/diameter_nominal)^2 | Affinity law for scaling |