 Award ID(s):
 1707640
 Publication Date:
 NSFPAR ID:
 10175504
 Journal Name:
 Journal of Fluid Mechanics
 Volume:
 892
 ISSN:
 00221120
 Sponsoring Org:
 National Science Foundation
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Shearinduced pair interactions between viscous drops suspended in a viscoelastic matrix are numerically investigated examining the effects of elasticity and drop deformability on their postcollision trajectory. Two different trajectory types are identified depending on the Weissenberg number Wi and capillary number Ca. Drops suspended in a Newtonian matrix ( Wi = 0.0) show a passing trajectory where drops slide past each other and separate in the streamwise direction. However, when increasing the Weissenberg number above a critical value, a tumbling/doublet trajectory is observed where two drops rotate around the midpoint of the line joining their centers, as was also seen previouslymore »

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