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Vortex shedding as winds pass Heard Island (bottom left) in the southern Indian Ocean resulted in this Kármán vortex street in the clouds In fluid dynamics , vortex shedding is an oscillating flow that takes place when a fluid such as air or water flows past a bluff (as opposed to streamlined) body at certain velocities, depending on the size ...
Visualisation of the vortex street behind a circular cylinder in air; the flow is made visible through release of glycerol vapour in the air near the cylinder. In fluid dynamics, a Kármán vortex street (or a von Kármán vortex street) is a repeating pattern of swirling vortices, caused by a process known as vortex shedding, which is responsible for the unsteady separation of flow of a fluid ...
A vortex flow might also be combined with a radial or axial flow pattern. In that case the streamlines and pathlines are not closed curves but spirals or helices, respectively. This is the case in tornadoes and in drain whirlpools. A vortex with helical streamlines is said to be solenoidal.
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In today's puzzle, there are eight theme words to find (including the spangram). Hint: The first one can be found in the top half of the board. Here are the first two letters for each word: SC. CO ...
The Pentagon has spent more than $14 trillion since 9/11, with up to 50% going to defense contractors, Brown University's Cost of War project found.
U.S. President Donald Trump's approval rating has ticked slightly lower in recent days as more Americans worried about the direction of the U.S. economy as the new leader threatens a host of ...
Vortex Bladeless is currently working on two future products that are expected to be commercially available in 2021. The specified goals for each model are: [10] Vortex Nano – 1 metre (3.3 ft) high and 3 W nominal power output. Designed mainly to bring energy to off-grid locations for low-power systems, working along with solar panels.