'Heater Box - Full Setup' simulation project by dthayer


#1

I created a new simulation project called 'Heater Box - Full Setup':

Analyzing the full setup of the heater box for CFD.


More of my public projects can be found here.


#2

Pretty big mesh. Having trouble with “mpirun noticed that process rank 2 with on node exited on signal 9 (Killed).” Basically what this means, is that I overloaded the servers. Tried playing with the timestep, only to frustrate myself. Tried both k-epsilon and k-omega SST with different types of air models (even using sutherland and janaf). It’s just not playing nice with SST. I’m going to use a Transient solver, see if the inlet pressure flatlines.


#3

:weary: Taking too long. I split the model into quarters, even though the model isn’t perfectly symmetrical. Nothing was converging since the number of nodes is too long, and I feel weary as well as guilty for taking up all the CPU.


#4

Hi @dthayer,

very interesting project - I’ll take a look as well and see whether I can help or not.

Best,

David


#5

The major problem I had was overloading the CPU’s. Kept getting signal 9 kill errors. Then, when it did seem to run successfully (at a transient solver), the time step became so small that eventually, I ran out of CPU time (on my account!) as it was about to crash.


#6

Got it. Have you been in touch with the SimScale support?


#7

Not about that issue. I have been taken off this project officially. New boss, new orders.