Heat Conduction Analysis

This analysis uses the data of tutorial/16_heat_block.

Analysis target

The analysis target is a perforated block, the geometry is shown in Figure 4.16.1 and the mesh data is shown in Figure 4.16.2.

Item	Description	Notes
Type of analysis	Heat conduction analysis	!SOLUTION,TYPE=HEAT
Number of nodes	37,386
Number of elements	32,160
Element type	Eight node hexahedral element	!ELEMENT,TYPE=361
Material name	AL	!MATERIAL,NAME=AL
Boundary conditions	Prescribed temperature	!FIXTEMP
Matrix solution	CG/SSOR	!SOLVER,METHOD=CG,PRECOND=1

Shape of the perforated block

Fig. 4.16.1: Shape of the perforated block

Mesh data of the perforated block

Fig. 4.16.2: Mesh data of the perforated block

Analysis content

Steady-state heat conduction analysis is performed to provide a heat source to the cylindrical inner surface of the object. 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

Execute the FrontISTR execution command fistr1.

$ cd FrontISTR/tutorial/16_heat_block
$ fistr1 -t 4
(Runs in 4 threads.)

Analysis results

A temperature contour plot was created by REVOCAP_PrePost and is shown in Figure 4.16.3. A part of the analysis results log file is shown below as numerical data for the analysis results.

Analysis results of temperature

Fig. 4.16.3: Analysis results of temperature

Analysis results log `0.log`.

 fstr_setup: OK

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

Heat Conduction Analysis