modelMetalTube
Cylindrical metal tube - 1 radial node and N axial nodes
Extends from MetalTubeFEM (Cylindrical metal tube - 1 radial node and N axial nodes), Modelica.Icons.ObsoleteModel (Icon for classes that are obsolete and will be removed in later versions).
Information
This is the model of a cylindrical tube of solid material.
The heat capacity (which is lumped at the center of the tube thickness) is accounted for, as well as the thermal resistance due to the finite heat conduction coefficient. Longitudinal heat conduction is neglected.
Modelling options
The following options are available:
- WallRes = false: the thermal resistance of the tube wall is neglected.
- WallRes = true: the thermal resistance of the tube wall is accounted for.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | N (from MetalTubeFEM) | 2 | Number of nodes |
| SI.Length | L (from MetalTubeFEM) | Tube length | |
| SI.Length | rint (from MetalTubeFEM) | Internal radius (single tube) | |
| SI.Length | rext (from MetalTubeFEM) | External radius (single tube) | |
| Real | rhomcm (from MetalTubeFEM) | Metal heat capacity per unit volume [J/m^3.K] | |
| SI.ThermalConductivity | lambda (from MetalTubeFEM) | Thermal conductivity | |
| Boolean | WallRes (from MetalTubeFEM) | true | Wall conduction resistance accounted for |
| Real | pi (from MetalTubeFEM) | Modelica.Constants.pi | |
| Initialisation | |||
| SI.Temperature | Tstartbar (from MetalTubeFEM) | 300 | Avarage temperature |
| SI.Temperature | Tstart1 (from MetalTubeFEM) | Tstartbar | Temperature start value - first node |
| SI.Temperature | TstartN (from MetalTubeFEM) | Tstartbar | Temperature start value - last node |
| SI.Temperature[N] | Tstart (from MetalTubeFEM) | Functions.linspaceExt(Tstart1, TstartN, N) | Start value of temperature vector (initialized by default) |
| Choices.Init.Options | initOpt (from MetalTubeFEM) | system.initOpt | Initialisation option |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| DHT | int (from MetalTubeFEM) | Internal surface | |
| DHT | ext (from MetalTubeFEM) | External surface |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| ThermoPower.System | system (from MetalTubeFEM) | System wide properties | |
| SI.Temperature[N] | T (from MetalTubeFEM) | Node temperatures | |
| SI.Area | Am (from MetalTubeFEM) | Area of the metal tube cross-section |
Revisions
- 30 May 2005
by Francesco Casella:
Initialisation support added. - 1 Oct 2003
by Francesco Casella:
First release.