Position-based Fluids
Implement position-based fluids. http://mmacklin.com/pbf_sig_preprint.pdf
Do you think Position Based Fluids are more desirable than other newer SPH developments? I'm asking this because SPlisHSPlasH mentions they find DFSPH to be the most efficient SPH solver. I don't know how DFSPH compares to PBF, but I believe SPlisHSPlasH does support PBF too, but however they choose DFSPH as the default solver...
I haven't looked into DFSPH, but that sounds pretty cool indeed. As one of the goals of Jet Framework is to have implementation of known algorithms and papers, including DFSPH also might be considered. I actually would love to see contributions for adding such new solvers to the framework, too.