TY - JOUR
T1 - Oscillons and propagating solitary waves in a vertically vibrated colloidal suspension
AU - Lioubashevski, O.
AU - Hamiel, Y.
AU - Agnon, A.
AU - Reches, Z.
AU - Fineberg, J.
PY - 1999/10/18
Y1 - 1999/10/18
N2 - The observation of localized stationary structures, coined oscillons, in granular media has evoked much interest. By parametric excitation of clay suspensions, we demonstrate a hysteretic transition to oscillon-type states in a nongranular medium. When the symmetry of up-down reflection + time translation is lost, these states undergo a transition to propagating localized states previously seen in Newtonian fluids. These observations are in accord with recent theoretical predictions of sufficient conditions for oscillon formation. In addition, a novel measurement technique for the effective suspension viscosity demonstrates their shear-thinning properties. 1999
AB - The observation of localized stationary structures, coined oscillons, in granular media has evoked much interest. By parametric excitation of clay suspensions, we demonstrate a hysteretic transition to oscillon-type states in a nongranular medium. When the symmetry of up-down reflection + time translation is lost, these states undergo a transition to propagating localized states previously seen in Newtonian fluids. These observations are in accord with recent theoretical predictions of sufficient conditions for oscillon formation. In addition, a novel measurement technique for the effective suspension viscosity demonstrates their shear-thinning properties. 1999
UR - http://www.scopus.com/inward/record.url?scp=0001548087&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.83.3190
DO - 10.1103/PhysRevLett.83.3190
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AN - SCOPUS:0001548087
SN - 0031-9007
VL - 83
SP - 3190
EP - 3193
JO - Physical Review Letters
JF - Physical Review Letters
IS - 16
ER -