modelFrictionBase1DFV2ph
Friction base model for 1DFV2ph components
Information
Base model for replaceable friction models to be used to redeclare the fricion model in the Flow1DFV2ph components;
Parameters
| Type | Name | Default | Description |
|---|
| SI.Length | Dhyd | | Hydraulic Diameter (single element in parallel) |
| SI.PerUnit | Kfc | | Friction factor correction coefficient |
| Integer | Nt | 1 | Number of tubes in parallel |
| Integer | N | 2 | Number of nodes for thermal variables |
| SI.Length | L | | Tube length |
| SI.Area | A | | Cross-sectional area (single element in parallel) |
| SI.PerUnit | wnf | | Fraction of nominal flow rate at which linear friction equals turbulent friction |
| Medium.MassFlowRate | wnom | | Nominal mass flowrate (total) |
| SI.PressureDifference | dpnom | | Nominal pressure drop |
| SI.Length | omega_hyd | 4*A/Dhyd | Wet perimeter (single tube) |
| SI.Length | l | L/(N - 1) | Length of a single volume |
Components
| Type | Name | Default | Description |
|---|
| Medium.ThermodynamicState | fluidState | | Thermodynamic state of the fluid at the nodes |
| Medium.SaturationProperties | sat | | Properties of saturated fluid |
| Medium.MassFlowRate | w | | Mass flowrate (single tube) |
| Medium.SpecificEnthalpy | hl | | Saturated liquid temperature |
| Medium.SpecificEnthalpy | hv | | Saturated vapour temperature |
| Medium.SpecificEnthalpy[N - 1] | htilde | | Enthalpy state variables |
| SI.PerUnit[N] | x | | Steam quality |
| Real[N - 1] | Kf | | Friction coefficient |
| Real[N - 1] | Kfl | | Linear friction coefficient |
| Real[N - 1] | Cf | | Fanning friction factor |
| Boolean | NoFriction | | =true, if no friction is used |
Contents
| Name | Description |
|---|
 Medium | Medium model |