Learning Forum

[Peter Yip]

Hi Forum,

I am running a fully structured ALE problem (meaning both the projectile and target are AMMGs and no Lagrangian parts are included). I see some voids and am wondering if this is normal? Is this contributing to my simulation in a negative way? My understanding is that this could be a numerical artifact of the void closure algorithm required for this type of ALE formulation, but would like to confirm.

Thanks,

Peter

[Ian Do]

Hi Peter,

This is just an artifact of LSPREPOST approximation display of the volume fractions of the ALE materials. If you refine the mesh, this "gap" will diminish. 

Ian