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In an experiment on thin flat strips falling through a fluid in a vertical cell, two fundament motions are observed: side-to-side oscillation (flutter) and end-over-end rotation (tumble). At hâ€¦ (More)

We present an experimental study of the impact of a solid sphere on the free surface of a viscoelastic wormlike micellar fluid. Spheres of various densities and diameters are dropped from differentâ€¦ (More)

- Anandhan Jayaraman, Andrew Belmonte
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2003

We present an experimental study of the motion of a solid sphere falling through a wormlike micellar fluid. While smaller or lighter spheres quickly reach a terminal velocity, larger or heavierâ€¦ (More)

- Thomas Podgorski, Michael C. Sostarecz, Sylvain Zorman, Andrew Belmonte
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2007

We present an experimental study of the fingering patterns in a Hele-Shaw cell occurring when a gel-like material forms at the interface between aqueous solutions of a cationic surfactantâ€¦ (More)

When a sphere settles through the free surface of a viscous fluid, the interface is deformed and assumes a funnel shape behind the sphere. If the fluid is viscoelastic and the settling process isâ€¦ (More)

- Nestor Z. Handzy, Andrew Belmonte
- Physical review letters
- 2004

Previous observations of the nontransient oscillations of rising bubbles and falling spheres in wormlike micellar fluids were limited to a single surfactant system. We present an extensive survey ofâ€¦ (More)

- Joseph R Gladden, Nestor Z. Handzy, Andrew Belmonte, Emmanuel Villermaux
- Physical review letters
- 2005

We present experiments on the dynamic buckling and fragmentation of slender rods axially impacted by a projectile. By combining the results of Saint-Venant and elastic beam theory, we derive aâ€¦ (More)

- James C Bird, William D Ristenpart, Andrew Belmonte, Howard A Stone
- Physical review letters
- 2009

Oppositely charged drops attract one another and, when the drops are sufficiently close, electrical stresses deform the leading edges of each drop into cones. We investigate whether or not the liquidâ€¦ (More)

- Russ deForest, Andrew Belmonte
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2013

We introduce a nondiffusive spatial coupling term into the replicator equation of evolutionary game theory. The spatial flux is based on motion due to local gradients in the relative fitness of eachâ€¦ (More)

We adapt a fitness function from evolutionary game theory as a mechanism for aggregation and dispersal in a partial differential equation (PDE) model of two interacting populations, described byâ€¦ (More)