Finding area of a 2D rising bubble
I am trying to simulate the rise of an air bubble in a vertical pipe. My primary goal is to control the expansion and study the interface of the bubble as it rises through the pipe. I am using the VOF method and I have set the density of the rising bubble as of "Ideal Gas" in the drop-down menu. Now, I want to check the magnitude of expansion for "Ideal Gas". Is there any way I can measure the area of the bubble interface. Both where it is deformed and when it breaks up. The deformed case is of more importance. Can anyone guide me regarding the same, please?