Fusion, and friction, and fields! Oh, my! The rich and ubiquitous world of fluid dynamics

Fluid dynamics – a subset of the area of physics known as fluid mechanics – is concerned with the motion, or flow, of liquids and gases. Within fluid dynamics, a vortex is a region within a fluid where the flow is essentially a spinning motion about an imaginary straight or curved axis. In this context, helicity represents the degree of linkage of the flow’s vortex lines, conserved when these are frozen in the fluid.

from Phys.org: Physics News http://ift.tt/1hfpClu

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