Page 170 - Using ANSYS for Finite Element Analysis Dynamic, Probabilistic, Design and Heat Transfer Analysis

apDl programming • 157
Preprocessor -> Meshing -> Size Controls -> ManualSize
-> Lines > Picked Lines > type 2 then press Enter > type
4 then press Enter-> OK > Enter # of divisions = 600
> Apply > type 1 then press Enter > type 3 then press
Enter-> OK > Enter # of divisions = 5 -> OK
• Now create the mesh:
Preprocessor -> Meshing -> Mesh -> Areas -> Free ->
Click on the area of select Pick All -> OK
• Select type of analysis:
Solution > Analysis Type -> New Analysis -> Steady-State
-> OK
• Apply the temperature boundary condition:
Solution > Define Loads > Apply -> Thermal > Tem-
perature > On Line > Enter line No. = 1 > Select TEMP
and enter value = 100 > OK.
• Apply the convective boundary conditions:
Solution > Define Loads > Apply -> Thermal > Convection
> On Lines > Enter line Numbers = 2, 3 and 4 (after typ-
ing each number press ENTER key) > OK > Enter Film
Coeff = 10 and Bulk Temperature = 25 > OK.
• Perform the solution:
Solution -> Solve -> Current LS -> OK
• To establish a command log file from the database log, pick
Utility Menu> File> Write DB Log File. You can specify a
file name or use the default name, Jobname.LGW.
2. Edit the Command Log File
Using any text editor, edit the Database command log file: Tutorial 2.lgw
/BATCH
! /COM,ANSYS RELEASE 11.0 UP20070125
13:36:28 08/30/2008
/input,start110,ans,’C:\Program Files\
ANSYS
Inc\v110\ANSYS\apdl\’,,,,,,,,,,,,,,,,1
!*
/NOPR
/PMETH,OFF,0
KEYW,PR_SET,1
KEYW,PR_STRUC,0
KEYW,PR_THERM,1
KEYW,PR_FLUID,0
KEYW,PR_ELMAG,0