modelFlowConst_041113
1-D fluid flow model (finite volume discretization - ideal fluid model)
Parameters
| Type | Name | Default | Description |
|---|
| HT_sf | HTtype | HT_sf.Const | Select type of heat transfer coefficient |
| Real | pi | Modelica.Constants.pi | pi-greco |
| Integer | N | 10 | Number of cells |
| Modelica.SIunits.Area | A | 16.18 | Lateral surface of the tube: heat exchange area |
| Modelica.SIunits.Volume | V | 0.03781 | Volume of the tube |
| Modelica.SIunits.Volume | Vi | V/N | Volume of a single cell |
| Modelica.SIunits.Area | Ai | A/N | Lateral surface of a single cell |
| Modelica.SIunits.MassFlowRate | Mdotnom | 3 | Norminal fluid flow rate |
| Modelica.SIunits.CoefficientOfHeatTransfer | Unom | 500 | Nominal heat transfer coefficient,secondary fluid |
| Initialization |
| Modelica.SIunits.Temperature | Tstart_inlet | 145 + 273.15 | Inlet temperature start value |
| Modelica.SIunits.Temperature | Tstart_outlet | 135 + 273.15 | Outlet temperature start value |
| Modelica.SIunits.Temperature[N] | Tstart | linspace(Tstart_inlet, Tstart_outlet, N) | Start value of temperature vector (initialized by default) |
| Initialization › Intialization options |
| Boolean | steadystate_T | true | if true, sets the derivative of T to zero during Initialization |
| Numerical options |
| Discretizations | Discretization | ThermoCycle.Functions.Enumerations.Discretizations.centr_diff | Selection of the spatial discretization scheme |
Components
| Type | Name | Default | Description |
|---|
| Modelica.SIunits.MassFlowRate | Mdot | | |
| Modelica.SIunits.SpecificHeatCapacity | cp | | |
| Modelica.SIunits.Temperature | T_su | | |
| Modelica.SIunits.Density | rho_su | | |
| Modelica.SIunits.Temperature[N] | T | | Node temperatures |
| Modelica.SIunits.HeatFlux[N] | qdot | | Average heat flux |
| Modelica.SIunits.Temperature[N + 1] | Tnode | | |
| Modelica.SIunits.Temperature[N] | T_wall | | Internal wall temperature |
| Modelica.SIunits.CoefficientOfHeatTransfer | U | | Heat transfer coefficient,secondary fluid |
| Modelica.SIunits.Power | Q_tot | | Total heat flux exchanged by the thermal port |
| Modelica.SIunits.Mass | M_tot | | Total mass |
