How to define height of filling of particles

Submitted by dhari27 on Fri, 02/20/2015 - 04:34

Hi,

Iam trying to fill a container with particles. How can I fill the container upto a specific height.

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richti83's picture

richti83 | Fri, 02/20/2015 - 08:27

Hi,

Calculate the desired volume of the region you want to fill. Than estimate the mass by m_gen=1/2*V_box*particle density (assuming 50% voidfraction).
Than use fix insert stream mass ${m_gen}

Or divide the box volume by the average particle volume and use insert stream with n_particle. Take care that you take the voidfraction into account.
Or use insert pack with a tetraeder mesh of the volume you want to fill and grow the particles slightly with fix adapt (see examples in.mesh_tet and in.packing)

Good Luck,
Christian.

I'm not an associate of DCS GmbH and not a core developer of LIGGGHTS®
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dhari27 | Mon, 02/23/2015 - 10:10

Thank you for your reply,

Considering the third way with tetraeder mesh and fix adapt, which is the best software for tetraeder mesh?
Also after providing the fix adapt command, will I be able to further grow the particles in the container.