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Optimal Design of Multi-Layer Fog Collectors
Musaddaq Azeem, Adrien Guèrin, Thomas Dumais +8
The growing concerns over desertification have spurred research into technologies aimed at acquiring water from non-traditional sources such as dew, fog, and water vapor. Some of t…
Stability of dancing Volvox
Takuji Ishikawa, T. J. Pedley, K. Drescher +1
Biflagellate algal cells of the genus Volvox form spherical colonies that propel themselves, vertically upwards in still fluid, by the coordinated beating of thousands of flagella,…
A theory for the slip and drag of superhydrophobic surfaces with surfactant
Julien R. Landel, François J. Peaudecerf, Fernando Temprano-Coleto +3
Superhydrophobic surfaces (SHSs) have the potential to reduce drag at solid boundaries. However, multiple independent studies have recently shown that small amounts of surfactant,…
A compact Eulerian representation of axisymmetric inviscid vortex sheet dynamics
Adriana I. Pesci, Raymond E. Goldstein, Michael J. Shelley
A classical problem in fluid mechanics is the motion of an axisymmetric vortex sheet evolving under the action of surface tension, surrounded by an inviscid fluid. Lagrangian descr…
Shear-Driven Circulation Patterns in Lipid Membrane Vesicles
Francis G. Woodhouse, Raymond E. Goldstein
Recent experiments have shown that when a near-hemispherical lipid vesicle attached to a solid surface is subjected to a simple shear flow it exhibits a pattern of membrane circula…
Mixing by Swimming Algae
Jeffrey S. Guasto, Kyriacos C. Leptos, J. P. Gollub +2
In this fluid dynamics video, we demonstrate the microscale mixing enhancement of passive tracer particles in suspensions of swimming microalgae, Chlamydomonas reinhardtii. These b…