modelFlow1DConst
1-D fluid flow model (finite volume discretization - ideal fluid model)
Information
This model describes the flow of a constant heat capacity fluid through a discretized one dimentional tube. It is obtained by connecting in series N CellConst
The model is characterized by a SummaryClass that provide a quick access to the following variables once the model is simulated:
- Temperature at each nodes
- Temperature at the center of each cell
Parameters
| Type | Name | Default | Description |
|---|
| Real | pi | Modelica.Constants.pi | pi-greco |
| Integer | N | 10 | Number of cells |
| Integer | Nt | 1 | Number of cells in parallel |
| 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.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 | 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 |
Flow1DConstHeatTransferModel