Hi.

You cannot use LSSOLVE with "element birth and death". You must use SOLVE.

Hope I helped you.

/SOL

EKILL, ....

*DO,A,1,...

EALIVE,...

TIME,...

SAVE

SOLVE

*ENDDO

Hello Douglas Bezerra de Araújo ,

Thanks for the prompt reply. I have made changes in my APDL script as suggested by you. Thanks to you that I am not getting errors anymore while

using 'ekill' and 'ealive' command.

The calculation for first layer ran smoothly, but when i activated the second layer, i ran into another set of errors as shown. I am using the same 'do' loop that i have used for the first layer with few changes like:

time_now is 7.11 instead of zero

i have activated all the layers ie 1st and 2nd

I have attached the screenshot of the script. If you find some errors

please let me know. Again, I am greatful for your help.

Regards

Kumar Ujjwal

Try to apply heat to the nodes using heat flow instead of heat flux.

I don't think you need to erase the convection. Several warnings will appear, but the solution will occur.

tame - elements size

Qqq - power

dt - time step

passo=1

*DO,vi,5,50

NSEL,S,LOC,Z,(vi-0.0001)*tame,(vi+0.0001)*tame

*GET,AA,NODE,,NUM,MIN

F,AA,HEAT,Qqq

NSEL,ALL

TIME,passo*dt

OUTRES,NSOL,ALL

OUTRES,ESOL,ALL

OUTRES,ALL

OUTPR,ALL

SAVE

SOLVE

FDELE,ALL,HEAT

passo=passo+1

*ENDDO

Following