Several patterns of coalescence behavior were observed.
This pattern is the coalescence of two spherical bubbles.
The polymer interface establishes at the onset of coalescence, elongates in the direction of flow until it ruptured.
The characteristic of this pattern of coalescence is that a satellite bubble is newly created as a residual of coalesced bubble.
This pattern of coalescence is observed at the final stage of coalescence.
The rheological property is one of the key parameters in determining the coalescence patterns.
In the following section, the bubble coalescence patterns No.