Heat Conduction Analysis¶
This analysis uses the data in tutorial/16_heat_block.
Analysis Target¶
The analysis target is a block with a hole. Its geometry is shown in Figure 4.16.1, and the mesh data are shown in Figure 4.16.2.
| Item | Description | Notes | Reference |
|---|---|---|---|
| Analysis type | Heat conduction analysis | !SOLUTION,TYPE=HEAT | |
| Number of nodes | 37,386 | ||
| Number of elements | 32,160 | ||
| Element type | 8-node first-order hexahedral element | !ELEMENT,TYPE=361 | |
| Material property name | AL | !MATERIAL,NAME=AL | |
| Boundary condition | Prescribed temperature | !FIXTEMP | |
| Matrix solver | CG/SSOR | !SOLVER,METHOD=CG,PRECOND=1 |

Figure 4.16.1 Geometry of the block with a hole

Figure 4.16.2 Mesh data for the block with a hole
Analysis Description¶
A steady-state heat conduction analysis is performed by applying a heat source to the cylindrical inner surface of the analysis target. The analysis control data are shown below.
Analysis Control Data block.cnt¶
# Control File for FISTR
## Analysis Control
!VERSION
3
!SOLUTION, TYPE=HEAT
!HEAT
0.0
!WRITE,RESULT
!WRITE,VISUAL
## Solver Control
### Boundary Conditon
!FIXTEMP
FTMPC, 100.0
FTMPS1, 20.0
FTMPS2, 20.0
FTMPS3, 20.0
FTMPS4, 20.0
### Material
# define in mesh file
### Solver Setting
!SOLVER,METHOD=CG,PRECOND=1,ITERLOG=YES,TIMELOG=YES
100, 1
1.0e-8, 1.0, 0.0
## Post Control
!VISUAL,metod=PSR
!surface_num=1
!surface 1
!output_type=VTK
!END
Analysis Procedure¶
Run the FrontISTR execution command fistr1.
(Run with 4 threads)
Analysis Results¶
A temperature contour plot created with REVOCAP_PrePost is shown in Figure 4.16.3. In addition, part of the analysis result log file is shown below as numerical data from the analysis results.

Figure 4.16.3 Temperature analysis result