Density Reinitialization and Kernel Renormalization

cube

I don't know if dualsphysics have Density Reinitialization and Kernel Renormalization,because I found that sphysics's guide document has Density Reinitialization and Kernel Renormalization.If dualsphysics don't have these two terms,why don't we take it into account?
Thanks!

Asalih3d

Hello cube

DualSPHysics used to employ a Shepherds filters (my spelling might be wrong) which was used to correct for density - it was computationally expensive and has since been discontinued. Instead the delta-SPH scheme has been implemented which corrects for the density.

I guess that with kernel renormalization you mean that at boundaries, because of lack of particles, the kernels have to be renormalized - as far as I know DualSPHysics do not correct for this, but I would like to be corrected.

Kind regards, maybe you can dig deeper into the wiki/forum and find out

cube

thanks for your reply!
Regards

Alex

density renormalization has been replaced by the more accurate delta-SPH:
https://github.com/DualSPHysics/DualSPHysics/wiki/3.-SPH-formulation#35-deltasph