Hello.nMy mass increases considerably after a point and I do not seem to understand why. Increase in mass does not make sense to me. What does this mean?nDerivative option is gradient and scaling option is Scale by Global Maximum. nnThe increase happens when the drop is about to leave the converging section of the channel.nnAlso, if the volume fraction of the drop does not change, does that not mean that the mass is being conserved?.