71th Annual Meeting of the APS Division of Fluid Dynamics (November 18, 2018 — November 20, 2018)

V0088: Reducing the forces of water entry

Authors
  • Tadd Truscott, Splash Lab, Utah State University, Logan, UT
  • Nathan Speirs, Splash Lab, Utah State University, Logan, UT
  • Rafsan Rabbi, Splash Lab, Utah State University, Logan, UT
  • Jesse Belden, Naval Undersea Warfare Center, Newport, RI
  • Zhao Pan, Florida State University

The water entry of a sphere has a considerable impact force. By manipulating the fluid in front of the sphere one can greatly reduce the impact force. We explore three types of force reduction in this video: a sphere in a jet, a sphere following a smaller sphere, and a sphere impinging on a worthington jet. 

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