2D Overset Mesh in Ansys Fluent-Object Falling into Water

[@siddhantpanigrahi9700]

Hi there, thanks for the great tutorial. I am running into the problem of negative cell volume detected while replicating the same simulation. Can you provide any advice. Did try to reduce the time step and use mesh smoothing.

[@milad9546]

Great Tutorial. Thanks for the Content. Please do a full tutorial on 3d falling object into the water. Please explain in more detail about the settings you set(the why?). Great work, keep it up.

[@RezaAlijani_RA]

Thank you. I try to make videos about that in the future. There was no special setting for that. I think I explained the important parts.

[@amardeepsinghseera]

Hi great simulation, i need to simulate multiple moving parts. can i use multiple Overset meshes in 3d simulation. I would be great if you can let me know some tips for simulating that.

[@weili9556]

Hi, thanks for the video. May I ask in which situation overset mesh should be used? and what about dynamic mesh. Thank you.

[@RezaAlijani_RA]

Hi, sorry for late reply. You can use both mesh, but when you have two objects like here and you want one of them to be fixed, it is better to uae overset meah. In turbo machines, we mainly use overset mesh. I hope you get your answer

[@rishabhjaiswal290]

Great tutorial please upload more lecture on dynamic mesh

[@herrherk9804]

I´m pretty sure the box is either 200x80 or 100x40, since with these edge length you would have a square-like shape. Additionally the size of the Object being in mm seems to be incorrect as well.

[@ethanmax97]

Hello Brother, I thank you for the video but there is one thing I am trying to figure out. how did you calculate the Mass moments of Inertia as they are sphere and symmetric (Ixx and Iyy must be the same right)?

[@RezaAlijani_RA]

Hi and sorry for late reply, I didn't calculate it deeply. It was just a simple simulation to help you get familiar with overset mesh

[@ethanmax97]

@@RezaAlijani_RA no worries brother, is it possible to give a hint on how you got those values? This is the one thing I can't figure out in dynamic meshing.

[@harig7742]

Please explain what were the settings in the 1) Models section, 2) Phase Interaction within Multiphase. I'm trying to re-create this simulation but not able to

[@analyse-k9q]

Hi I didn't get the sys-3 surface in boundary condition

[@eliahcameron1149]

I'm attempting a similar probably and running into some issues. Forums haven't been much help

[@basaruoz7127]

Can you simulate same problem in OpenFoam

[@RezaAlijani_RA]

I have't done this before, but I think that is possible Dynamich mesh cases is so difficult to simulate in openfoam and you need lots of struggle