Reply To: Temperature setting in Ansys workbench transient thermal

[n2390n]

firstly thx alot for ur help,

I want to explain my simulation, this is a transient laser heating process,

This is a workpiece that has been preheated and has three layers (673K) and is continuously heated at the bottom of the workpiece So I think that during the entire simulation process, the temperature should not fall below this temperature (673K by a large amount) But later in the simulation, it was found that during the cooling process after laser heating, abnormally low temperatures occasionally appear (-200K or even lower)

So I started to doubt whether there was a problem with my settings When setting the temperature of the workpiece, I chose 3 bodies instead of 1 face

But such a setting makes the laser heating unable to effectively raise the temperature

It may not be very well expressed, I hope you can understand

 

BYW

https://img.onl/ma45Vd

sorry post this link, I can't upload pic 

what's different in those 2 option