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vorticity

noun

vor·​tic·​i·​ty vȯr-ˈti-sə-tē How to pronounce vorticity (audio)
1
: the state of a fluid in vortical motion
broadly : vortical motion
2
: a measure of vortical motion
especially : a vector measure of local rotation in a fluid flow

Example Sentences

Recent Examples on the Web Soon enough, at a point along the boundary where the opposing flows meet, the fluid’s vorticity explodes. Quanta Magazine, 12 Apr. 2022 The problem is that for this to work, the mathematicians don’t just have to solve the equations (now written in self-similar coordinates) for the usual parameters, such as velocity and vorticity. Quanta Magazine, 12 Apr. 2022 Later experiments revealed that particle collisions within the QGP swirl faster (a measure of vorticity) than any other known fluid, too. Jennifer Ouellette, Ars Technica, 1 May 2020 The Euler equations reported that the vorticity (or spin) of the fluid at that point was amplifying dramatically. Quanta Magazine, 13 Jan. 2020 Some of the vorticity might originally be around a horizontal axis, but once air is sucked up into the fire plume, its hot, buoyant upward stream causes the axis to tilt to a vertical orientation. Jason M. Forthofer, Scientific American, 20 Nov. 2019 The vorticity in the extra dimensions can suddenly initiate a bounce. Quanta Magazine, 31 Jan. 2018 The color represents vorticity, a quantity related to angular momentum. Lee Phillips, Ars Technica, 10 Oct. 2018 Much like a dust devil or whirlwind, the rapidly rising air above a wildfire can accelerate and turn the local vorticity into a tight vertical vortex, now composed of fire instead of dust. Jason Samenow, Washington Post, 19 Oct. 2017 See More

Word History

First Known Use

1888, in the meaning defined at sense 1

Time Traveler
The first known use of vorticity was in 1888

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