An explicit expression for the calculation of the Rortex vector
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DOI: 10.1063/1.5116374
Abstract: Recently, a vector called Rortex was proposed and successfully applied to identify the local fluid rotation with both the rotation axis and strength. The first implementation relies on the real Schur decomposition of the velocity… read more here.
Keywords: explicit expression; vector; implementation; calculation ... See more keywords
Stretching response of Rortex and other vortex-identification schemes
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DOI: 10.1063/1.5127178
Abstract: By considering a uniaxial stretching coupled with an inevitable uniform radial contraction for incompressible flow, a straightforward comparison of the stretching response for several popular vortex-identification criteria and the recently proposed vortex vector (Rortex) is… read more here.
Keywords: stretching response; vortex; rortex; vortex identification ... See more keywords