PointSource setup Error

MFiX Bug report
#1

When I try to create a point source and run it, I get the following error, what is the reason? How should it be solved?

Error from set_ps.f:154
PointSource setup Error: 0 No PS_VOLUME == ZERO

Thanks for your help!

#2

Hi Mengyuan, welcome to the MFIX forum.

When seeking help here, please do the following:

  1. Search the forum for relevant posts, your problem may already have been solved.

  2. Attach your project files, so we can run the simulation here. Under the main menu in MFiX is an item “Submit bug report” which creates a .zip file with all relevant input files. Then you post that zip file here.

In your cse, searching for “PS_VOLUME” turns up a number of threads, including

https://mfix.netl.doe.gov/forum/t/problem-of-creating-of-point-sources/2978

If this does not help, please attach your zip file so we can have a look. Thanks.

– Charles

#3

Thank you for your reply!
This is my zip file, please check it out.
loop_seal_pic_3d_3_2022-04-06T095132.720381.zip (12.2 MB)
Thank you for your help!

#4

A few issues:

  1. The geometry is not waterproof, there is an opening at the bottom of the vertical cylinder. You need to define a better geometry and inspect the mesh.
  2. The point source is defined outside the fluid region, move it slightly inwards (say at x=0).
  3. The top mass inlet BC needs a non-zero velocity, here it needs to be in the negative y-direction.
2 Likes
#5

Thank you for your reply! I will try again.