# Heat Conduction Analysis

## Heat Conduction Analysis

This analysis uses the data of tutorial/16_heat_block.

### Analysis target

The target of this analysis is a perforated block whose shape and mesh data are shown in Figs. 4.16.1 and 4.16.2, respectively. The mesh is a hexahedral primary element with 32160 elements and 37386 nodes.

Fig. 4.16.1: Shape of the perforated block

Fig. 4.16.2: Mesh data of the perforated block

### Analysis content

This is a steady-state heat conduction analysis wherein a heat source is provided to the cylindric internal surface of the analysis target. The analysis control data are presented below.

#  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

### Analysis results

This analysis uses the data of tutorial/17_freq_beam. The first step of the analysis is to change the overall control data for eigenvalue analysis, hecmw_ctrl_eigen.dat, to hecmw_ctrl.dat and perform eigenvalue analysis. Further, change the overall control data for frequency response analysis, hecmw_ctrl_freq.dat, to hecmw_ctrl.dat, and the eigenvalue analysis result log file, 0.log, to eigen_0.log (which is specified within the analysis control data for frequency response analysis.) Finally, frequency response analysis is performed.

Fig. 4.16.3: Analysis results of temperature

ISTEP =     1
Time  =     0.000
Maximum Temperature :   100.000
Maximum Node No.    :         9
Minimum Temperature :    20.000
Minimum Node No.    :        85