[avdhruva]

I doing a numerical simulation of Injecting Lagrangian particle-laden gas in a water column from bottom.
Gas and water phases are modeled in VOF and particles are Lagrangian Particles.
I am calculating the contamination factor. For that I have calculated mass of particles in present air and water phase using user defined field functions.
I want to also calculate the Lagrangian particle transfer from Bubble to gas and water to gas at the free surface (water surface).
Any suggestions, how to do this using field functions or any other way to do this?

Thank you in advance for your time and valuable advices.