Fluid Juggling

Fluid jets can suspend light balls in the air in a display of hydro gymnastics. This video is one of several entries to the American Physical Society's Division of Fluid Dynamics annual Gallery of Fluid Motion.

 Video Credit: Roberto Zenit and Enrique Soto (National Autonomous University of Mexico
 

Mach 3 Bubble Shockwaves

Supercomputer simulations reveal the intricate density and vorticity patterns resulting from a Mach 3 shockwave hitting a helium bubble.

 Video Credit: Babak Hejazialhosseini, Diego Rossinelli and Petros Koumoutsakos from the Computational Science and Engineering Laboratory, ETH Zurich, Switzerland

 

Fluid Knots and Smoke Ring Physics

"Filamental Vortex Loops," such as those found in smoke rings and mushroom clouds, crop up in a number of applications in fluid dynamics. Earlier this year, scientists created a long-sought twist on this phenomenon: knotted vortex loops.

 With the help of 3-D printer-created hydrofoils, lasers, and a high-speed camera, researchers from the University of Chicago collected the beautiful images in this video.

 

Frozen Powder Drops

When water droplets impact super hydrophobic powder at a high enough velocity, they "freeze" into place. The powder fully encapsulates the droplet, forming shapes resembling bowling pins, ice cream cones, and more.

This video is a submission to the American Physical Society's Division of Fluid Dynamics Gallery of Motion for 2012.
arXiv article containing this video
Physics Buzz Blog Post

Video Credit: Jeremy Marston, Ying Zhu, Ivan Vakarelski, and Siggi Thoroddsen from King Abdullah University of Science and Technology
Music: Artist -- Francisco de Asís Tárrega y Eixea. Song -- Romance De Juegos Prohobidos. Performer --
Jim Greeninger