Nonmodal nonlinear route of transition to two-dimensional turbulence
Physical Review Research, 2020 Turbulence has remained an unsolved problem in physics, despite the availability of some numerical results. The onset and growth of disturbances leading to two- and three-dimensional turbulence have been theoretically and computationally shown for wall ...
Aditi Sengupta +2 more
doaj +1 more source
Flow Statistics in the Transitional Regime of Plane Channel Flow
Entropy, 2020 The transitional regime of plane channel flow is investigated above the transitional point below which turbulence is not sustained, using direct numerical simulation in large domains.
Pavan V. Kashyap +2 more
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Transition to turbulence in wall-bounded flows: Where do we stand? [PDF]
, 2016 In this essay, we recall the specificities of the transition to turbulence in wall-bounded flows and present recent achievements in the understanding of this problem.
P. Manneville
semanticscholar +1 more source
Phase Transition to Large Scale Coherent Structures in Two-Dimensional Active Matter Turbulence. [PDF]
Physical Review Letters, 2018 The collective motion of microswimmers in suspensions induce patterns of vortices on scales that are much larger than the characteristic size of a microswimmer, attaining a state called bacterial turbulence.
M. Linkmann +3 more
semanticscholar +1 more source
Direct numerical simulations of transition in a compressor cascade: The influence of free-stream turbulence [PDF]
, 2010 Copyright © Cambridge University Press 2010.The flow through a compressor passage without and with incoming free-stream grid turbulence is simulated.
Durbin, PA +3 more
core +2 more sources
The glass transition in a nutshell: a source of inspiration to describe the subcritical transition to turbulence [PDF]
, 2013 The starting point of the present work is the observation of possible analogies, both at the phenomenological and at the methodological level, between the subcritical transition to turbulence and the glass transition. Having recalled the phenomenology of
Bertin, Eric, Dauchot, Olivier
core +2 more sources
Imaging the emergence of bacterial turbulence: Phase diagram and transition kinetics
Science Advances, 2021 Transition to active bacterial turbulence confirms the key prediction of kinetic theories and shows two unusual kinetic pathways. We experimentally study the emergence of collective bacterial swimming, a phenomenon often referred to as bacterial ...
Yi Peng, Zhengyang Liu, Xiang Cheng
semanticscholar +1 more source
International Journal of Turbomachinery, Propulsion and Power, 2018 For the numerical prediction of turbomachinery flows, a two-equation turbulence model in combination with a proper transition model to account for laminar boundary layers and their transition to turbulence is state of the art.
Christoph Bode +3 more
doaj +1 more source
An optimization approach for analysing nonlinear stability with transition to turbulence in fluids as an exemplar [PDF]
Reports on progress in physics. Physical Society, 2014 This article introduces and reviews recent work using a simple optimization technique for analysing the nonlinear stability of a state in a dynamical system.
R. Kerswell +2 more
semanticscholar +1 more source
Subcritical transition to turbulence of a precessing flow in a cylindrical vessel [PDF]
, 2015 The transition to turbulence in a precessing cylindrical vessel is experimentally investigated. Our measurements are performed for a { nearly-resonant} configuration with an initially laminar flow dominated by an inertial mode with azimuthal wave number $
J. Herault +3 more
semanticscholar +1 more source