TY - JOUR
T1 - Sinking a Granular Raft
AU - Protière, Suzie
AU - Josserand, Christophe
AU - Aristoff, Jeffrey M.
AU - Stone, Howard A.
AU - Abkarian, Manouk
N1 - Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/3/6
Y1 - 2017/3/6
N2 - We report experiments that yield new insights on the behavior of granular rafts at an oil-water interface. We show that these particle aggregates can float or sink depending on dimensionless parameters taking into account the particle densities and size and the densities of the two fluids. We characterize the raft shape and stability and propose a model to predict its shape and maximum length to remain afloat. Finally we find that wrinkles and folds appear along the raft due to compression by its own weight, which can trigger destabilization. These features are characteristics of an elastic instability, which we discuss, including the limitations of our model.
AB - We report experiments that yield new insights on the behavior of granular rafts at an oil-water interface. We show that these particle aggregates can float or sink depending on dimensionless parameters taking into account the particle densities and size and the densities of the two fluids. We characterize the raft shape and stability and propose a model to predict its shape and maximum length to remain afloat. Finally we find that wrinkles and folds appear along the raft due to compression by its own weight, which can trigger destabilization. These features are characteristics of an elastic instability, which we discuss, including the limitations of our model.
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U2 - 10.1103/PhysRevLett.118.108001
DO - 10.1103/PhysRevLett.118.108001
M3 - Article
C2 - 28339259
AN - SCOPUS:85014897884
SN - 0031-9007
VL - 118
JO - Physical review letters
JF - Physical review letters
IS - 10
M1 - 108001
ER -