View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0003375||OpenFOAM||Bug||public||2019-10-23 20:08||2019-10-24 11:47|
|Priority||normal||Severity||minor||Reproducibility||have not tried|
|Fixed in Version|
|Summary||0003375: Number of Trapped Particles in Different Courant Number|
I am using MPPICFoam to simulation particulate flow inside a cylinder. The strange thing that happens is that as long as I decrease maxCo in my simulation, the number of trapped particles on cylinder wall ( with stick BC) will decrease.
I expected that the number of trapped particles converges as I decrease the maxCo but this is not happening.
I also used injectionChannel tutorial case to see if the problem is regarding my simulation or not. I realized that we have the same problem with this case too.
This happens while I am sure that fluid flow converges earlier and the fluid flow is converged in these simulations.
It would be highly appreciated if you let me know what's the reason for having this difference in particle fate in different time steps.
|Tags||No tags attached.|
Quoting from the section "Reporting an Issue" at the rules page: https://bugs.openfoam.org/rules.php
We can only resolve an issue if we can understand and reproduce it.
You are only describing a very vague symptom, without providing an example of what exactly have you done in defined values, nor did you provide a test case that shows this happening.
My guess is that you first simulated with maxCo of 10, then 5, then 1 and were expecting the same results, which would reveal that you are not familiar with what the Courant number is actually pointing out.
Furthermore, please keep in mind from the rules page:
This site does not provide free support for the use of OpenFOAM.
So, please, provide proper details of what exactly you are doing, so that if it is a bug, it can be fixed.
||This report does not identify a bug. Differences in simulation behaviour are to be expected with varying CFL, and this report does not identify in what way the identified differences are unreasonable or incorrect. Closing.|