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Issue 27, 2014
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The force of impacting rain

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Abstract

Drop impacts are difficult to characterize due to their transient, non-stationary nature. We discuss the force generated during such impacts, a key quantity for animals, plants, roofs or soil erosion. Although a millimetric drop has a modest weight, it can generate collision forces on the order of thousand times this weight. We measure and discuss this amplification, considering natural parameters such as drop radius and density, impact speed and response time of the substrate. We finally imagine two kinds of devices allowing us to deduce the size of the raindrop from impact forces.

Graphical abstract: The force of impacting rain

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Publication details

The article was received on 06 Mar 2014, accepted on 09 Apr 2014 and first published on 11 Apr 2014


Article type: Paper
DOI: 10.1039/C4SM00513A
Author version available: Download Author version (PDF)
Citation: Soft Matter, 2014,10, 4929-4934
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    The force of impacting rain

    D. Soto, A. B. De Larivière, X. Boutillon, C. Clanet and D. Quéré, Soft Matter, 2014, 10, 4929
    DOI: 10.1039/C4SM00513A

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