67th Annual Meeting of the APS Division of Fluid Dynamics (November 23, 2014 — November 25, 2014)

V0096: Water Entry by a Train of Droplets

Authors

• Chon U Chan, Nanyang Technological University, Singapore
• Xin Huang, Nanyang Technological University, Singapore
• Philipp Frommhold , Third Physical Institute, University of Goettingen, Germany
• Alexander Lippert, LAM Research AG, Austria
• Claus-Dieter Ohl, Nanyang Technological University, Singapore

DOI: https://doi.org/10.1103/APS.DFD.2014.GFM.V0096

We show high-speed recordings of a high speed droplet train impacting on a deep water pool and the accompanied formation of largely elongated cavities. The droplets with diameters of 40 μm and velocities of approx. 20 m/s are generated with a piezo-actuated nozzle at rates of approx.300 kHz. The cavities reach centimetres in length with lateral diameters of the order of 100 of micrometres.