Multiphase SPH simulation

I have corrected the pressure equation I previously used in my solver, so that now it handles correctly density ratios. It can handle density ratio of about 100, being perfectly stable as far as a reasonable time step is used. In this video, density ratio is 0.5. I have implemented a mixability parameter, which influence surface tension between two fluids. In this video, both fluids have a mixability factor of 50%, which means that a fluid is less attracted by another fluid than by itself (in order to keep a constant density at interface). I definitely want to port to 3D. The only contrainst is user interface. I’m currently thinking about a minimalist yet powerful way to edit as it is possible in my 2D application. ~~~~~~~~~~~~~ | VIDEO LOG | ~~~~~~~~~~~~~ Number of particles : 96717 Domain size : x Time step : Time scale : Particle spacing : % Interaction radius : 300% Gravity : Display target : velocity Simulated time