Heat Conduction Analysis¶

Use the data in tutorial/16_heat_block.

Analysis Target¶

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

Item	Description	Notes
Analysis type	Heat conduction analysis	!SOLUTION,TYPE=HEAT
Number of nodes	37,386
Number of elements	32,160
Element type	8-node linear hexahedral element	!ELEMENT,TYPE=361
Material name	AL	!MATERIAL,NAME=AL
Boundary conditions	Prescribed temperature	!FIXTEMP
Matrix solver	CG/SSOR	!SOLVER,METHOD=CG,PRECOND=1

Shape of the perforated block

Figure 4.16.1: Shape of the perforated block

Mesh data of the perforated block

Figure 4.16.2: Mesh data of the perforated block

Analysis Setup¶

Perform a steady-state heat conduction analysis by applying a heat source to the cylindrical inner surface of the block. 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 Condition
!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,method=PSR
!surface_num=1
!surface 1
!output_type=VTK
!END

Analysis Procedure¶

Run fistr1.

cd FrontISTR/tutorial/16_heat_block
fistr1 -t 4

(Run with 4 threads.)

Analysis Results¶

Figure 4.16.3 shows a temperature contour plot created using REVOCAP_PrePost. An excerpt from the analysis result log file is shown below as numerical output.

Temperature results

Figure 4.16.3: Temperature results

Analysis Result 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