Interaction between floating and bottom using DEM

wangjiahan123456

April 2020 in DualSPHysics v4.4

Hello.

When I simulate the free falling of a floating, I find that when the floating reach the bottom it just go througn the bottom as if there is no bound particles. I am prettty confused about that because in the XML_GUIDE it is suggested to use DEM to the interaction between floating and bottom. Also, in the example case, the DEM is successful to solve the interaction between floating and bottom. But in my simulation, the DEM method is failed to solve the interaction between floating and bottom, why?

Comments

Asalih3d

April 2020

Try sharing your simulation file, since it is very hard to get an idea of what goes wrong other wise.
Kind regards
wangjiahan123456

April 2020

case.rar
Asalih3d

April 2020

I had a look at it @wangjiahan123456 but couldn't figure out why that would happen. Try increasing particle resolution, is a typical tip, maybe that helps. Maybe lower coefh as well.
Kind regards
wangjiahan123456

April 2020

Thanks for your suggestions, @Asalih3d .

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