modelOperatingPoint
Operating point
Extends from ThermoPower.Friction.Interfaces.FrictionBase1DFV2ph (Friction base model for 1DFV2ph components).
Information
Friction factor is calculated starting from a nominal operating point;Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Length | Dhyd (from FrictionBase1DFV2ph) | Hydraulic Diameter (single element in parallel) | |
| SI.PerUnit | Kfc (from FrictionBase1DFV2ph) | Friction factor correction coefficient | |
| Integer | Nt (from FrictionBase1DFV2ph) | 1 | Number of tubes in parallel |
| Integer | N (from FrictionBase1DFV2ph) | 2 | Number of nodes for thermal variables |
| SI.Length | L (from FrictionBase1DFV2ph) | Tube length | |
| SI.Area | A (from FrictionBase1DFV2ph) | Cross-sectional area (single element in parallel) | |
| SI.PerUnit | wnf (from FrictionBase1DFV2ph) | Fraction of nominal flow rate at which linear friction equals turbulent friction | |
| Medium.MassFlowRate | wnom (from FrictionBase1DFV2ph) | Nominal mass flowrate (total) | |
| SI.PressureDifference | dpnom (from FrictionBase1DFV2ph) | Nominal pressure drop | |
| SI.Length | omega_hyd (from FrictionBase1DFV2ph) | 4*A/Dhyd | Wet perimeter (single tube) |
| SI.Length | l (from FrictionBase1DFV2ph) | L/(N - 1) | Length of a single volume |
| Medium.Density | rhonom | Nominal inlet density |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Medium.ThermodynamicState | fluidState (from FrictionBase1DFV2ph) | Thermodynamic state of the fluid at the nodes | |
| Medium.SaturationProperties | sat (from FrictionBase1DFV2ph) | Properties of saturated fluid | |
| Medium.MassFlowRate | w (from FrictionBase1DFV2ph) | Mass flowrate (single tube) | |
| Medium.SpecificEnthalpy | hl (from FrictionBase1DFV2ph) | Saturated liquid temperature | |
| Medium.SpecificEnthalpy | hv (from FrictionBase1DFV2ph) | Saturated vapour temperature | |
| Medium.SpecificEnthalpy[N - 1] | htilde (from FrictionBase1DFV2ph) | Enthalpy state variables | |
| SI.PerUnit[N] | x (from FrictionBase1DFV2ph) | Steam quality | |
| Real[N - 1] | Kf (from FrictionBase1DFV2ph) | Friction coefficient | |
| Real[N - 1] | Kfl (from FrictionBase1DFV2ph) | Linear friction coefficient | |
| Real[N - 1] | Cf (from FrictionBase1DFV2ph) | Fanning friction factor | |
| Boolean | NoFriction (from FrictionBase1DFV2ph) | =true, if no friction is used |
Revisions
- 12 Mar 2026
by Andrea Bartolini:
First release.