[ROY4]

Hello everyone,

I would like to develop a code in which bubbles are injected at approximately zero size, grow on a surface, and detach once they reach a critical diameter.

My colleague has been using the patchInjection method, where bubbles are randomly injected at a predefined size and immediately move away from the surface after their creation. In my case, however, I am interested in capturing the bubble growth process on the surface before detachment. Since the number of bubbles is on the order of
10^6, I plan to use a parcel approach.

One concern I have with random injection methods such as patchInjection is the possibility that a new bubble might be randomly created at the same location while another bubble is still growing there. My colleague mentioned that with patchInjection, no new bubble is generated at a site until the previous one detaches — but I am not fully certain about this behavior.

I believe that defining specific injection sites could provide more control over the growth and detachment process. On the other hand, bubble formation is inherently random in reality, so a random injection approach might still be physically justifiable.

Could anyone share their thoughts on which approach might be more suitable for my case? Any guidance or suggestions would be greatly appreciated.

Thank you in advance for your help.