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The lid-driven right-angled isosceles triangular cavity flow

Author
An, B.; Bergadà, J.M.; Mellibovsky, F.
Type of activity
Journal article
Journal
Journal of fluid mechanics
Date of publication
2019-09-25
Volume
875
First page
476
Last page
519
DOI
10.1017/jfm.2019.512
Repository
http://hdl.handle.net/2117/167040 Open in new window
URL
https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/liddriven-rightangled-isosceles-triangular-cavity-flow/06AC2A104F18327D5095E0D5B83FAF76 Open in new window
Abstract
We employ lattice Boltzmann simulation to numerically investigate the two-dimensional incompressible flow inside a right-angled isosceles triangular enclosure driven by the tangential motion of its hypotenuse. While the base flow, directly evolved from creeping flow at vanishing Reynolds number, remains stationary and stable for flow regimes beyond Re & 13 400, chaotic motion is nevertheless observed from as low as Re ' 10 600. Chaotic dynamics is shown to arise from the destabilisation, followi...
Citation
An, B.; Bergadà, J.M.; Mellibovsky, F. The lid-driven right-angled isosceles triangular cavity flow. "Journal of fluid mechanics", 25 Setembre 2019, vol. 875, p. 476-519.
Keywords
Bifurcation, Chaos, Lattice Boltzman Method, Lid driven cavity, Numerical simulation
Group of research
DF - Dinàmica de Fluids: formació d'estructures i aplicacions geofísiques
TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group

Participants