Abstract
We use immiscible lattice-gas automata to study the collision of two drops in a linear shear field for a range of Reynolds number, Re, and Capillary number, Ca, at a single fixed viscosity ratio and impact parameter. We observe the full range of collision scenarios - coalescence in the compressional and extensional quadrants, 'kiss-and-break', where the drops coalesce in the extensional quadrant before breaking up into two or more drops, and non-coalescence - depending on Re and Ca. Limited results suggest that the regions of the Re-Ca space associated with these collision scenarios are not separated by distinct boundaries but, rather, transition zones in which the probabilities of the two outcomes vary in a complementary fashion from one to the other.
Original language | English |
---|---|
Title of host publication | Chemeca 2008: Towards a Sustainable Australasia |
Place of Publication | Barton, A.C.T. |
Publisher | Engineers Australia |
Pages | 1174-1183 |
Number of pages | 10 |
ISBN (Print) | 858258234 |
Publication status | Published - 2008 |