Output files with numerical divergence and gradient

sph_tudelft_nl

I am interested in getting the gradients and divergence operators of the primitive variables as output. Say I want to evaluate the field of the velocity divergence, that of the pressure gradient, and the like.

A specific requirement is that this output is computed exactly like the approximated operators implemented at run time (so, same formulation and neighbours as in the algorithms). This output should be give numerical estimates of the differential operators according to the DualSPHysics underlying algorithm, with warts and all.

I looked into the help files of the DualSPHysics suite, but couldn't seem to spot any option to output them. Ditto for the forum.

Glad to be corrected. Would someone please point me in the right direction to obtain that output?

Alex

Perhaps some useful information can be found in https://github.com/DualSPHysics/DualSPHysics/wiki/13.-How-to-modify-DualSPHysics-for-your-application
under the section "New variables defined by the user in DualSPHysics and in the post-processing tools"

Regards