Reply To: Multicomponent flow- water droplet splashing
A small correction to my previous statement.
When only looking at density, then the difference between the density at the center of the droplet and the rim of the droplet should be taken. When looking at the pressure
p = cs2 \rho + G 0.5cs2 \psi^2 then the difference between the center and the edge of the simulation should be taken. Both will result in a linear relation to 1/r showing that is follows the laplace, but only the pressure version should be used to calculate the resultant surface tension.
At a tr=0.7, I get a center pressure of around O(1e-3), and a pressure of around O(1e-4) at the simulation edge. I hope that clarifies the problem a bit more.