With changing the origin of my geometry, I'm not getting the same Results
 

Hi All,

I'm working on this project for months. I'm using Multi-phase, InterFoam, WaterChannel case.

Openfoam Version 5.0

My problem is that in the beginning, my origin in the blockmeshDict was left corner of Branch Channel & when i got my solution converged, I changed the origin in the blockMeshDict according to the paper i was following. But with changing this origin I'm not getting the same results at outlet as i got with the first blockMeshDict file. All my other files are same.

My files are attached below with more description.

Attachment 79979

This is my first case as you can see here, the value near the outlet and my origin shown with arrow.

Attachment 79980

This is my 2nd case, Remember that I'm using same BC's , Nothing changed except this origin. Similarly Velocity also varies.

Attachment 79982

Here are my Both blockMeshDict files.


I was looking for this problem on this forum & as well as i googled but i couldn't find the answer. I'm looking for someone who can help me in this regard or atleast give me some suggestions.

Any help would be deeply appreciated.
Thanks

Regards.

Please any expert,
I want to know why this happening?

Any help would be deeply Appreciated,I will be very thankful

Thanks
Regards

i checked your geometries,
they are exact the same.

it shouldn't be a geometry issue imo.

can you upload your g-file in the constant-dict?

Thanks for your reply..

These are my g files.

g1 is a file of first case, & g2 is a file of 2nd case.

btw both are same.

Attachment 80433

i see, my first suspicion was that maybe gravity is not chosen in the right direction, but that looks fine.

if everything else is the same, i don't really know why the result is not the same.

btw what are you showing in the two pictures. you didn't write any title, so i don't really know what i am looking at.

This is depth of water in meters

Hi Geth..

i also made changes in setFieldsDict, but i don't think that the error is because of these files
Here are my files,

Attachment 80434

setFields1 is of 1st case

setFields2 is of 2nd case.

i can't comment on that i don't have access to your data,
so i don't know what the void fraction looks like in both
domains after executing setFields.

can you post pics of both in the 0-time after executing setFields?