Publications associées à Increasing Lifetimes and the Growing Saddles of Shear Flow Turbulence

From thin plates to Ahmed bodies: linear and weakly nonlinear stability of rectangular prisms

Edouard Boujo, Giuseppe Antonio Zampogna

We study the stability of laminar wakes past three-dimensional rectangular prisms. The width-to-height ratio is set to W/H = 1.2, while the length-to-height ratio 1/6 < L/H < 3 covers a wide range of geometries from thin plates to elongated Ahmed bodies. F ...

CAMBRIDGE UNIV PRESS2023

On the Capability of Wall-Modeled Large Eddy Simulations to Predict Particle Dispersion in Complex Turbulent Flows

Mohamed Aly Hashem Mohamed Sayed

Predicting particle transport in turbulent flows has a plethora of applications, some of which are: the transport of atmospheric aerosols, the deposition of blood cells in the arteries of human bodies and the atomization of fuel droplets in combustion cham ...

EPFL2022

Constructing periodic orbits of high-dimensional chaotic systems by an adjoint-based variational method

Tobias Schneider, Sajjad Azimi, Omid Ashtari

Chaotic dynamics in systems ranging from low-dimensional nonlinear differential equations to high-dimensional spatiotemporal systems including fluid turbulence is supported by nonchaotic, exactly recurring time-periodic solutions of the governing equations ...

2022

Invariant tori in dissipative hyperchaos

Tobias Schneider, Jeremy Peter Parker

One approach to understand the chaotic dynamics of nonlinear dissipative systems is the study of non-chaotic yet dynamically unstable invariant solutions embedded in the system's chaotic attractor. The significance of zero-dimensional unstable fixed points ...

AIP Publishing2022

Bistable-Type Interactions Of Complex Systems In A Fractal Paradigm Of Motion

Maria-Alexandra Paun

In the present paper the "interface" dynamics in the case of two complex systems interaction, assimilated to fractal-type mathematical objects, are analyzed. In such context, fractal bistable-type behaviors as transitions in the scale space are obtained. O ...

UNIV POLITEHNICA BUCHAREST, SCI BULL2022

Bistable-Type Interactions Of Complex Systems In A Fractal Paradigm Of Motion

Maria-Alexandra Paun

UNIV POLITEHNICA BUCHAREST, SCI BULL2022

Periodic orbits exhibit oblique stripe patterns in plane Couette flow

Tobias Schneider, Florian Reetz

Spatiotemporally chaotic dynamics of transitional plane Couette flow may give rise to regular turbulent-laminar stripe patterns with a large-scale pattern wavelength and an oblique orientation relative to the laminar flow direction. A recent dynamical syst ...

AMER PHYSICAL SOC2021

Comparison of Reduced-Basis techniques for the model order reduction of parametric incompressible fluid flows

Carlo Fiorina

The applicability of two Reduced-Basis techniques to parametric laminar and turbulent incompressible fluid flow problems in nuclear engineering is studied in this work. The Reduced-Basis methods are used to generate Reduced-Order Models (ROMs) that can acc ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Increasing Lifetimes and the Growing Saddles of Shear Flow Turbulence

From thin plates to Ahmed bodies: linear and weakly nonlinear stability of rectangular prisms

On the Capability of Wall-Modeled Large Eddy Simulations to Predict Particle Dispersion in Complex Turbulent Flows

Constructing periodic orbits of high-dimensional chaotic systems by an adjoint-based variational method

Invariant tori in dissipative hyperchaos

Coexistence of Active and Hydrodynamic Turbulence in Two-Dimensional Active Nematics

Bistable-Type Interactions Of Complex Systems In A Fractal Paradigm Of Motion

Bistable-Type Interactions Of Complex Systems In A Fractal Paradigm Of Motion

Periodic orbits exhibit oblique stripe patterns in plane Couette flow

Comparison of Reduced-Basis techniques for the model order reduction of parametric incompressible fluid flows

Invariant solutions underlying small- and large-scale structures in turbulent boundary layers

Graph Chatbot

Chattez avec Graph Search

Invariant tori in dissipative hyperchaos

Periodic orbits exhibit oblique stripe patterns in plane Couette flow

Bistable-Type Interactions Of Complex Systems In A Fractal Paradigm Of Motion

Coexistence of Active and Hydrodynamic Turbulence in Two-Dimensional Active Nematics

Invariant solutions underlying small- and large-scale structures in turbulent boundary layers

Constructing periodic orbits of high-dimensional chaotic systems by an adjoint-based variational method

Bistable-Type Interactions Of Complex Systems In A Fractal Paradigm Of Motion

From thin plates to Ahmed bodies: linear and weakly nonlinear stability of rectangular prisms

Comparison of Reduced-Basis techniques for the model order reduction of parametric incompressible fluid flows

On the Capability of Wall-Modeled Large Eddy Simulations to Predict Particle Dispersion in Complex Turbulent Flows