[Guille1811]

Basically im running a transient simulation of X amount of seconds y i need to know the elapsed wall clock time for Y*X seconds, where 0<Y<1 and for different values of Y.

How can i do that? I search online for CEL expressions for wall clock time but didnt find :/

Greetings.

[urosgrivc]

You can monitor elapsed wall clock time

(1) by enabeling time plot in solver manager while solving or
(2) making a graph of y(t) in cfx post

[Guille1811]

(1) by enabeling time plot in solver manager while solving

that time plot is the simulation times (37 seconds in my case). I need the computational time (i dont know the exact technical name), ie the number of hours it took the computer tu run the simulation.

(2) making a graph of y(t) in cfx post

What is y(t) and where is it in cfx post?

[urosgrivc]

Total computational and intermidiate times are reported in the solver manager. You can see them later in the output file or in (display monitors).

For charting time dependant variables you can insert a chart in cfx post and set it to transient

[Guille1811]

Intermidiate times reported in the output file (i guess you refer to "CPU seconds" on each iteration) are not the same as conpumtational times and therefore not what im looking (they are like 1 order of magnitude bigger).

Total computational time indeed is in the output file, but that is just of the total simulation and i need to analize along the simulation run.

I tried to do a chart in cfx post as you suggested bv the only variables available to plot are the same as in solver manager (acumulated timestep, current timestep and time), none of which is what im looking for.

[Gert-Jan]

You should divide the CPU seconds by the number of processors that you run your calculation on. If you run on 10 processors, then the order of magnitude difference can be explained.

The wall clock time has nothing to do with the physics that you are solving in CFX. So why are you looking for it as variable to use in Post?

[Guille1811]

You should divide the CPU seconds by the number of processors that you run your calculation on. If you run on 10 processors, then the order of magnitude difference can be explained.

That make sense and explains the values, thanks. In that case, how can do a plot of CPU seconds v/s timestep (or vs simulation time ideally) ?

[Gert-Jan]

I don't think that is possible in the solver manager. Ask ANSYS. Maybe there is a magic button.
Alternatively import the output file into a spreadsheet, so some filtering and sorting and make your own graph. Or write some python code to extract the data out of the output file.

[Guille1811]

Ok, thanks for your help!