modelQuadraticCurve
Quadratic efficiency characteristic curve, including linear extrapolation
Extends from TRANSFORM.Fluid.ClosureRelations.PumpCharacteristics.Models.Efficiency.PartialEfficiencyChar (Base class for pump efficiency characteristics.).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.VolumeFlowRate | V_flow_curve | {0, V_flow_nominal, 1.5*V_flow_nominal} | Volume flow rate for three operating points (single pump) |
| SI.Height | eta_curve | {0.0, 1.0, 0.5} | Pump head for three operating points |
| Internal Interface › Nominal Operating Parameters | |||
| SI.Conversions.NonSIunits.AngularVelocity_rpm | N_nominal (from PartialCharacteristic) | Pump speed | |
| SI.Length | diameter_nominal (from PartialCharacteristic) | Impeller Diameter | |
| SI.VolumeFlowRate | V_flow_nominal (from PartialCharacteristic) | Nominal volumetric flow rate | |
| Internal Interface › Initialization | |||
| SI.VolumeFlowRate | V_flow_start (from PartialCharacteristic) | ||
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Medium.ThermodynamicState | state (from PartialCharacteristic) | Thermodynamic state | |
| SI.VolumeFlowRate | V_flow (from PartialCharacteristic) | Mass flow rate | |
| SI.Conversions.NonSIunits.AngularVelocity_rpm | N (from PartialCharacteristic) | Pump speed | |
| SI.Length | diameter (from PartialCharacteristic) | Impeller Diameter | |
| Units.NonDim | affinityLaw (from PartialCharacteristic) | Affinity law for scaling | |
| SI.Efficiency | eta (from PartialEfficiencyChar) | Efficiency |