[mixturemodel]

Hi there,

I'm using the boxtocell function to insert a certain volume fraction value into a bottle. In the "constant" I can define as the parameter, in addition to the viscosity and density, the diameter of the bubbles. Please note, i'm using a mixturemodel (https://www.vtt.fi/inf/pdf/publications/1996/P288.pdf). Not having yet implemented the population balance and therefore the growth of the bubbles, I wanted to know if it was possible to set different bubble diameter values ​​within the "boxtocell" field, increasing it along the z coordinate (even discreetly) to make time tests of ascent.