Weird boundary discretization depending on dp
I am currently investigating resolution and its impact on simulation results in order to obtain the best compromise between accuracy of results and computation time.
By switching from dp 0.017 to 0.022 I now get an entirely different boundary discretization. I use an stl file for both the fluid and the container. Whereas the fluid has the autofill option active, this is not the case for the container, where I use a fillbox with a seed point that should be inside the outer and inner tank surface defining the tank shape.
I also use <setshapemode>actual | dp | bound</setshapemode>.
Here is how it looks like for dp 0.017 and what I want to have:
Note the few fluid particles inside the tank wall. For now I don't consider this issue vital. More relevant here is to know why I obtain following when switching to dp 0.022:
Note: The color is different because I did not adapt the idp scale. This is however not my issue here. The issue is that I have a fully filled tank wall with dp 0.017 but not with dp 0.22. Any idea why?
Comments
Hi,
My guess is that with increasing dp, the two "shells" touches some place and so the fillbox stops because there is no more void.
Can you show the seed point ?
Dear TPouzol,
I moved the seed point by a few cm and now it works. Thanks!
Hi happy for you and thanks for giving feedback !