The water entry of decelerating spheres
Citable URI:
http://hdl.handle.net/1721.1/60847
| Title: | The water entry of decelerating spheres |
| Author: | Aristoff, Jeffrey M.; Truscott, Tadd T.; Techet, Alexandra H.; Bush, John W. M. |
| Department: | Massachusetts Institute of Technology. Dept. of Mechanical Engineering; Massachusetts Institute of Technology. Dept. of Mathematics |
| Publisher: | American Institute of Physics |
| Issue Date: | 2010-03 |
| Abstract: | We present the results of a combined experimental and theoretical investigation of the vertical impact of low-density spheres on a water surface. Particular attention is given to characterizing the sphere dynamics and the influence of its deceleration on the shape of the resulting air cavity. A theoretical model is developed which yields simple expressions for the pinch-off time and depth, as well as the volume of air entrained by the sphere. Theoretical predictions compare favorably with our experimental observations, and allow us to rationalize the form of water-entry cavities resulting from the impact of buoyant and nearly buoyant spheres. |
| URI: | http://hdl.handle.net/1721.1/60847 |
| ISSN: | 1070-6631 1089-7666 |
| Citation: | Aristoff, Jeffrey M. et al. “The water entry of decelerating spheres.” Physics of Fluids 22.3 (2010): 032102-8. © 2010 American Institute of Physics |
| Version: | Final published version |
| Terms of Use: | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. |
| Published as: | http://dx.doi.org/10.1063/1.3309454 |
| Journal: | Physics of Fluids |
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