Flow Instability: Theory and Nonlinear Dynamics

Presentations

• Flow past a linearly-sprung, freely-rotatable circular cylinder with an eccentric center of mass

  ORAL

  Nov. 22, 2021, 6:05 PM – Nov. 22, 2021, 6:18 PM

  Presenters

  • Ke Ding

    University of Illinois at Urbana-Champaign

  Authors

  • Ke Ding

    University of Illinois at Urbana-Champaign

  • Arne J Pearlstein

    University of Illinois at Urbana-Champaign

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• Real-Time Reduced Order Modeling of Nonlinear Sensitivities in Evolutionary Systems

  ORAL

  Nov. 22, 2021, 6:18 PM – Nov. 22, 2021, 6:31 PM

  Publication: Computing sensitivities in evolutionary systems: A real-time reduced order modeling strategy (arXiv:2012.14028)

  Presenters

  • Michael Donello

    University of Pittsburgh

  Authors

  • Michael Donello

    University of Pittsburgh

  • Hessam Babaee

    University of Pittsburgh

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• Weak nonlinearity for strong nonnormality

  ORAL

  Nov. 22, 2021, 6:31 PM – Nov. 22, 2021, 6:44 PM

  Presenters

  • Yves-Marie Ducimetière

  Authors

  • Yves-Marie Ducimetière

  • Edouard Boujo

    Ecole Polytechnique Federale de Lausanne

  • François Gallaire

    Ecole Polytechnique Federale de Lausanne

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• Spontaneous symmetry-breaking of geometrically confined Faraday waves

  ORAL

  Nov. 22, 2021, 6:44 PM – Nov. 22, 2021, 6:57 PM

  Presenters

  • Jian Hui Guan

    University of North Carolina at Chapel H

  Authors

  • Jian Hui Guan

    University of North Carolina at Chapel H

  • Russell V Arnold

    University of North Carolina at Chapel Hill

  • Roberto Camassa

    University of North Carolina at Chapel Hill

  • Pedro J Saenz

    University of North Carolina at Chapel H, University of North Carolina at Chapel Hill

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• Estimating stability margins for transitional flows using quadratic constraints

  ORAL

  Nov. 22, 2021, 6:57 PM – Nov. 22, 2021, 7:10 PM

  Publication: Estimating regions of attraction for transitional flows using quadratic constraints, A. Kalur, T. Mushtaq, P. Seiler, and M.S. Hemati, IEEE Control Systems Letters (to appear), pre-print arXiv:2103.05426

  Presenters

  • Aniketh Kalur

    University of Minnesota

  Authors

  • Aniketh Kalur

    University of Minnesota

  • Talha Mushtaq

    University of Minnesota

  • Peter Seiler

    University of Michigan, Ann Arbor, University of Michigan

  • Maziar S Hemati

    University of Minnesota

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• Folding points, flow instabilities and onset of vortex formation

  ORAL

  Nov. 22, 2021, 7:10 PM – Nov. 22, 2021, 7:23 PM

  Publication: Bjoern F. Klose, Mattia Serra, Gustaaf B. Jacobs: Objective early identification of kinematic instabilities in shear flows. arXiv:2009.05851 [physics.flu-dyn]

  Presenters

  • Bjoern F Klose

    San Diego State University

  Authors

  • Bjoern F Klose

    San Diego State University

  • Mattia Serra

    University of California, San Diego

  • Gustaaf B Jacobs

    San Diego State University

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• Enhancement of filtration by hydrodynamic instabilities in a Taylor-Couette cell with semi-permeable cylinders.

  ORAL

  Nov. 22, 2021, 7:23 PM – Nov. 22, 2021, 7:36 PM

  Publication: Impact of osmotic pressure on the stability of Taylor vortices, R. Ben Dhia, N. Tilton, D. Martinand, submitted to J. Fluid Mech.

  Presenters

  • Denis Martinand

    Aix-Marseille University

  Authors

  • Denis Martinand

    Aix-Marseille University

  • Nils G Tilton

    Colorado School of Mines

  • Rouae BEN DHIA

    Aix-Marseille University

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• Active learning of nonlinear operators via neural nets for forecasting instabilities leading to extreme events in fluids

  ORAL

  Nov. 22, 2021, 7:36 PM – Nov. 22, 2021, 7:49 PM

  Presenters

  • Ethan M Pickering

    Massachusetts Institute of technology MIT, Caltech

  Authors

  • Ethan M Pickering

    Massachusetts Institute of technology MIT, Caltech

  • Lu Lu

    University of Pennsylvania

  • George E Karniadakis

    Brown University

  • Themistoklis Sapsis

    Massachusetts Institute of Technology MIT

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• Sparsity-promoting methods for automated simplification of linearized operators in fluid mechanics

  ORAL

  Nov. 22, 2021, 7:49 PM – Nov. 22, 2021, 8:02 PM

  Presenters

  • Scott T Dawson

    Illinois Institute of Technology

  Authors

  • Scott T Dawson

    Illinois Institute of Technology

  • Barbara Lopez-Doriga

    Illinois Institute of Technology

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• Pseudospectral analysis of parallel shear flows using wavepackets

  ORAL

  Nov. 22, 2021, 8:02 PM – Nov. 22, 2021, 8:15 PM

  Presenters

  • Barbara Lopez-Doriga

    Illinois Institute of Technology

  Authors

  • Barbara Lopez-Doriga

    Illinois Institute of Technology

  • Scott T Dawson

    Illinois Institute of Technology

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• Input-output analysis of stochastic base flow uncertainty in channel flows

  ORAL

  Nov. 22, 2021, 8:15 PM – Nov. 22, 2021, 8:28 PM

  Publication: D. B. Hewawaduge and A. Zare, Input-output analysis of stochastic base flow uncertainty, Phys. Rev. Fluids, 2020. Note: Submitted; also arXiv:2012.14918.

  Presenters

  • Dhanushki Hewawaduge

    University of Texas at Dallas

  Authors

  • Dhanushki Hewawaduge

    University of Texas at Dallas

  • Armin Zare

    University of Texas at Dallas

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• Floquet analyses of complex 3D flows

  ORAL

  Nov. 22, 2021, 8:28 PM – Nov. 22, 2021, 8:41 PM

  Presenters

  • Ricardo A SCHUH FRANTZ

    Arts et Métiers Institute of Technology

  Authors

  • Ricardo A SCHUH FRANTZ

    Arts et Métiers Institute of Technology

  • Jean-Christophe Loiseau

    Arts et Métiers Institute of Technology

  • Jean-Christophe Robinet

    ENSAM, Arts et Métiers Institute of Technology

  View abstract →