Dear All:
I run the settiling test and compared the numerical results and the analytical provided in the Octave code. The results agree well in this case, but if I increase the density of the fluid, for example 1000, the results differ in a 10% (logically I increase the density of the fluid to 1000 in the octave code). Do you know what is the reason of the divergence.
Regards
Rafael
cgoniva | Tue, 09/04/2012 - 13:37
Dear Rafael, There might be
Dear Rafael,
There might be several sources for an error:
- the drag law used for the the "analytical" solution does not match the law used for the coupled simulation,
- coupling interval is too big (numerical errors on coupling side / or in the octave "analytics")
- ...
Cheers,
Chris
Jacob.Z | Sat, 03/06/2021 - 04:23
The equation of the analytical solution
Hi Rafael,
I am recently paying my attention on this case. I have searched some literature, while I didn't find the source equation used in the Octave code. Could you please give me a hint?
Regards,
Bo