modelPipeFlowVLE_L4_Simple
Model for simulating a pipe flow with a VLE-fluid
Extends from ClaRa.Components.VolumesValvesFittings.Pipes.PipeFlowVLE_L4_Simple (A 1D tube-shaped control volume considering one-phase and two-phase heat transfer in a straight pipe with static momentum balance and simple energy balance.), TransiEnt.Basics.Icons.PipeFlow_L4_Simple.
Information
1. Purpose of model
A simple model of a pipe flow with a VLE-fluid
2. Level of detail, physical effects considered, and physical insight
L4 (defined in the CodingConventions)
3. Limits of validity
(no remarks)
4. Interfaces
inlet: FluidPortIn
outlet: FluidPortOut
heat: heat port
eye
5. Nomenclature
(no elements)
6. Governing Equations
(no equations)
7. Remarks for Usage
(no remarks)
8. Validation
(no validation or testing necessary)
9. References
(no remarks)
10. Version History
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Units.DensityMassSpecific[geo.N_cv] | rho_nom (from VolumeVLE_L4) | TILMedia.VLEFluid.MixtureCompatible.Functions.density_phxi(medium, p_nom, h_nom) | Nominal density |
| Fundamental Definitions | |||
| TILMedia.VLEFluid.Types.BaseVLEFluid | medium (from VolumeVLE_L4) | simCenter.fluid1 | Medium in the component |
| Boolean | frictionAtInlet (from VolumeVLE_L4) | false | True if pressure loss between first cell and inlet shall be considered |
| Boolean | frictionAtOutlet (from VolumeVLE_L4) | false | True if pressure loss between last cell and outlet shall be considered |
| Nominal Values | |||
| Units.Pressure[geo.N_cv] | p_nom (from VolumeVLE_L4) | ones(geo.N_cv)*1e5 | Nominal pressure |
| Units.EnthalpyMassSpecific[geo.N_cv] | h_nom (from VolumeVLE_L4) | ones(geo.N_cv)*1e5 | Nominal specific enthalpy for single tube |
| Units.MassFlowRate | m_flow_nom (from VolumeVLE_L4) | 100 | Nominal mass flow w.r.t. all parallel tubes |
| Units.PressureDifference | Delta_p_nom (from VolumeVLE_L4) | 1e4 | Nominal pressure loss w.r.t. all parallel tubes |
| Initialisation | |||
| Integer | initOption (from VolumeVLE_L4) | 0 | Type of initialisation |
| Units.EnthalpyMassSpecific[geo.N_cv] | h_start (from VolumeVLE_L4) | ones(geo.N_cv)*800e3 | Initial specific enthalpy for single tube |
| Units.Pressure[geo.N_cv] | p_start (from VolumeVLE_L4) | ones(geo.N_cv)*1e5 | Initial pressure |
| Units.MassFraction[medium.nc - 1] | xi_start (from VolumeVLE_L4) | zeros(medium.nc - 1) | Initial composition |
| Initialisation › Model Settings | |||
| Boolean | useHomotopy (from VolumeVLE_L4) | simCenter.useHomotopy | true, if homotopy method is used during initialisation |
| Summary and Visualisation | |||
| Boolean | showExpertSummary (from VolumeVLE_L4) | simCenter.showExpertSummary | True, if an extended summary shall be shown, else false |
| Boolean | showData (from VolumeVLE_L4) | false | True, if a data port containing p,T,h,s,m_flow shall be shown, else false |
| Boolean | contributeToCycleSummary (from PipeFlowVLE_L4_Simple) | simCenter.contributeToCycleSummary | True if component shall contribute to automatic efficiency calculation |
| Boolean | heatFlowIsLoss (from PipeFlowVLE_L4_Simple) | true | True if negative heat flow is a loss (not a process product) |
| Geometry | |||
| Basics.Units.Length | length (from PipeFlowVLE_L4_Simple) | 1 | Length of the pipe (one pass) |
| Basics.Units.Length | diameter_i (from PipeFlowVLE_L4_Simple) | 0.1 | Inner diameter of the pipe |
| Basics.Units.Length | z_in (from PipeFlowVLE_L4_Simple) | 0.1 | Height of inlet above ground |
| Basics.Units.Length | z_out (from PipeFlowVLE_L4_Simple) | 0.1 | Height of outlet above ground |
| Integer | N_tubes (from PipeFlowVLE_L4_Simple) | 1 | Number Of parallel pipes |
| Integer | N_passes (from PipeFlowVLE_L4_Simple) | 1 | Number of passes of the tubes |
| Integer | orientation (from PipeFlowVLE_L4_Simple) | 0 | Main orientation of tube bundle (N_passes>1) |
| Discretisation | |||
| Integer | N_cv (from PipeFlowVLE_L4_Simple) | 3 | Number of finite volumes |
| Basics.Units.Length[N_cv] | Delta_x (from PipeFlowVLE_L4_Simple) | ClaRa.Basics.Functions.GenerateGrid({0}, length*N_passes, N_cv) | Discretisation scheme |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.Basics.Interfaces.FluidPortIn | inlet (from VolumeVLE_L4) | Inlet port | |
| ClaRa.Basics.Interfaces.FluidPortOut | outlet (from VolumeVLE_L4) | Outlet port | |
| ClaRa.Basics.Interfaces.HeatPort_a[geo.N_cv] | heat (from VolumeVLE_L4) | ||
| Basics.Interfaces.EyeOut | eye (from PipeFlowVLE_L4_Simple) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| String | complexity (from ComplexityLevel) | "??" | |
| ClaRa.SimCenter | simCenter (from VolumeVLE_L4) | ||
| Summary | summary (from VolumeVLE_L4) | ||
| PressureLoss | pressureLoss (from VolumeVLE_L4) | Pressure loss model | |
| HeatTransfer | heatTransfer (from VolumeVLE_L4) | heat transfer model | |
| Geometry | geo (from VolumeVLE_L4) | ||
| MechanicalEquilibrium | mechanicalEquilibrium (from VolumeVLE_L4) | Mechanical equilibrium model | |
| ClaRa.Basics.Interfaces.Connected2SimCenter | connected2SimCenter (from PipeFlowVLE_L4_Simple) |