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Asymptotic solution for high-vorticity regions in incompressible three-dimensional Euler equations. / Agafontsev, D. S.; Kuznetsov, E. A.; Mailybaev, A. A.
в: Journal of Fluid Mechanics, Том 813, 1, 25.02.2017.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Asymptotic solution for high-vorticity regions in incompressible three-dimensional Euler equations
AU - Agafontsev, D. S.
AU - Kuznetsov, E. A.
AU - Mailybaev, A. A.
PY - 2017/2/25
Y1 - 2017/2/25
N2 - Incompressible three-dimensional Euler equations develop high vorticity in very thin pancake-like regions from generic large-scale initial conditions. In this work, we propose an exact solution of the Euler equations for the asymptotic pancake evolution. This solution combines a shear flow aligned with an asymmetric straining flow, and is characterized by a single asymmetry parameter and an arbitrary transversal vorticity profile. The analysis is based on detailed comparison with numerical simulations performed using a pseudospectral method in anisotropic grids of up to 972×2048×4096.
AB - Incompressible three-dimensional Euler equations develop high vorticity in very thin pancake-like regions from generic large-scale initial conditions. In this work, we propose an exact solution of the Euler equations for the asymptotic pancake evolution. This solution combines a shear flow aligned with an asymmetric straining flow, and is characterized by a single asymmetry parameter and an arbitrary transversal vorticity profile. The analysis is based on detailed comparison with numerical simulations performed using a pseudospectral method in anisotropic grids of up to 972×2048×4096.
KW - Vortex dynamics
KW - Vortex flows
KW - BURGERS VORTICES
KW - vortex flows
KW - NAVIER-STOKES EQUATIONS
KW - vortex dynamics
KW - DYNAMICS
KW - BLOW-UP
KW - FLOWS
UR - http://www.scopus.com/inward/record.url?scp=85028274811&partnerID=8YFLogxK
U2 - 10.1017/jfm.2017.1
DO - 10.1017/jfm.2017.1
M3 - Article
AN - SCOPUS:85028274811
VL - 813
JO - Journal of Fluid Mechanics
JF - Journal of Fluid Mechanics
SN - 0022-1120
M1 - 1
ER -
ID: 9963001