[boubou]

Hi,
I have some questions about the new functionality Monitor Statistics in CFX 16.0.
With a CEL expression it is possible to access Monitor Values (here I use the arithmetic average of an expression) :

probe(Expression Value.Arithmetic Average)@example

Let’s assume that example uses a Moving Interval defined on 40 iterations.

When I try to use probe(Expression Value.Arithmetic Average)@example in CEL I have this error message :

================================================== ====================
OUTER LOOP ITERATION = 1 CPU SECONDS = 1.621E+02

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Stopped in routine CEL_WRAP |
|

I think it’s because the moving interval needs 40 iterations to do the arithmetic average. At the Iteration 1 it is not defined. But, even if I write in CEL something like :

If( Accumulated Time Step < 40, 1 , probe(Expression Value.Arithmetic Average)@example)

I have still the same problem. Do you have a solution ?

[boubou]

Hi,

I have found the solution I post it if others have the same problem in the future.

My problem was that my inlet boundary condition depends on the expression probe(Expression Value.Arithmetic Average)@example (defined with a moving interval of 30 iterations). Consequently, the 30 first iterations, CFX can't do the calculation because the value of the expression doesn't exist. The solution is to make an artificial run just to initialize the second calculation.

Good bye

[zh&c]

Please,Could you tell me how to solved it?

[ghorrocks]

Hasn't boubou described exactly what the problem is and how to fix it?

If you do not understand what boubou is saying, or it is not working for you then post a question on that.

[zh&c]

I have some questions about the new functionality Monitor Statistics in CFX
With a CEL expression it is possible to access Monitor Values (here I use the arithmetic sum of an expression) :
probe(Expression Value.Arithmetic Average)@example
Let’s assume that example uses a Moving Interval defined on 2 iterations.

When I try to use probe(Expression Value.Arithmetic sum)@example in CEL I have this error message :


| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Stopped in routine CEL_WRAP |

[ghorrocks]

Did you read boubou's post? It says:

The solution is to make an artificial run just to initialize the second calculation.

So do a setup simulation without the function to get a few time steps history, then stop the simulation, restart with the function now activated and the first run as an initial condition.

[zh&c]

Sorry,I can not understand

[ghorrocks]

If the function you want is the moving average over 2 iterations, then:
* set up a simulation where you have removed the moving average function. Run it for 2 time steps.
* Do a simulation which now includes your moving average function, and use the result file of the first simulation as the initial condition.

This should run as you now have 2 time steps of history for the function to average over. Hopefully this works for you.

[zh&c]

Thank you!
I have tried the method you said but still show the error below

Follower partition: 5
Follower routine : ErrAction
Leader location : Message Handler
Message label : 001100279
Message follows below - :

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Stopped in routine CEL_WRAP
What should I do, please

[ghorrocks]

Please post your output file which shows this error.

[zh&c]

[IMG]file:///E:/ANSYS/res/WINKESSEL8-3_059.out[/IMG]
This is my Out.File?
Could you help me check it?
thank you

[zh&c]

Monitor Point: Q
Arithmetic Sum

Parallel run: Received message from follower
--------------------------------------------
Follower partition: 3
Follower routine : ErrAction
Leader location : Message Handler
Message label : 001100279
Message follows below - :

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Stopped in routine CEL_WRAP |
|

[ghorrocks]

Here is how to attach something to the forum: https://www.cfd-online.com/Wiki/Ansy...n_the_forum.3F

[Opaque]

What version of the software are you running?