Hydrodynamics of passing-over motion during binary droplet collision in shear flow

Wang Cheng-Yao¹, Zhang Cheng-Bin¹, Huang Xiang-Yong², Liu Xiang-Dong², Chen Yong-Ping^{1, 2, †,}

Effect of confinement on droplet rheological behaviors (Ca = 0.10): (a) motion behaviors (Co = 0.16, k = 1, scale bar = 300 μm); (b) motion behaviors (Co = 0.20, k = 1, scale bar = 300 μm); (c) relative trajectory; (d) droplet deformation.