| Author | Message | ||
     sivaranjini govindan (granjinig) New member Username: granjinig Post Number: 1 Registered: 04-2005 |
Hello everybody, I have a question. please help me out....... I am solving a PDE for heat flow in a semiconductor device. I want to find out the time when the heat flow reaches steady state. i.e how much time does it take to reach the steady state. Is there any way to do this? I also want the monitors to stop when it reaches the steady state, how can i do this? | ||
| Robert G. Nelson (rgnelson) Moderator Username: rgnelson Post Number: 354 Registered: 06-2003 |
If you plot a HISTORY of some meaningful diagnostic value, like temperature at a point, or GLOBALMAX(temperature), you can determine by observation what amount of time is necessary to reach equilibrium. In most cases, your diagnostic value will approach equilbrium asymptotically, so you have to decide what deviation from the ultimate value is sufficiently close to be called "equilibrium". You can state a HALT condition in your script. When the value of the condition becomes true, the computation will halt. See HALT in the Help Index. | ||
| sivaranjini govindan (granjinig) New member Username: granjinig Post Number: 2 Registered: 04-2005 |
Thank you for your suggesion. |