Table of Contents
Heat transfer
Computational flowchart
Computational steps
1. Processing the mesh
Input data are written to the text file name.i1.
Only isoparametric elements, semi-loof elements, and the corresponding Connector elements can be used. Sandwich and thermal contact resistance elements are not designed for static and dynamic problems; this must be kept in mind when creating meshes for thermoelastic computations.
| Program | XRM2 (2D problem) / XRM3 (3D problem) |
|---|---|
| Inputs | name.i1, alternatively name.NOD and name.ELE |
| Log | name.o1 |
| Outputs | binary files |
| Details | Computation overview, Mesh / Reference Manual: Inputs, Element library, Input data specification |
2. Processing the material properties, boundary and initial conditions, and control parameters
Input data are written to the text file name.iB.
If temperature fields have already been calculated, they can be loaded directly from the binary file name.TIC (a renamed copy of name.TEM).
| Program | XRPD (2D / 3D problem) |
|---|---|
| Inputs | name.iB, binary files from the previous step, name.TIC (optional) |
| Log | name.oB |
| Outputs | binary files |
| Details | Computation overview, Material properties, Thermal boundary and initial conditions, Solver control parameters for a steady-state linear problem, Solver control parameters for a steady-state nonlinear problem, Solver control parameters for a transient problem / Reference Manual: Inputs, Quantities, Input data specification |
3. Solving the system of equations
The solvers do not need additional input data. The calculated temperature fields are written to the binary file name.TEM, which can be used for subsequent stress analysis.
Moreover, the text file name.STR containing outputs for the GFEM graphical postprocessor is written automatically.
| Program | XT2S (2D steady-state problem) / XT3S (3D steady-state problem) / XT2T (2D transient problem) / XT3T (3D transient problem) |
|---|---|
| Inputs | binary files from the previous steps |
| Log | name.oT |
| Outputs | name.STR, binary files (the solution is in the name.TEM file) |
| Details | Computation overview |