About Universality and Thermodynamics of Turbulence

Autor: Damien Geneste, Hugues Faller, Florian Nguyen, Vishwanath Shukla, Jean-Philippe Laval, Francois Daviaud, Ewe-Wei Saw, Bérengère Dubrulle

Publikováno v: Entropy, Vol 21, Iss 3, p 326 (2019)

This paper investigates the universality of the Eulerian velocity structure functions using velocity fields obtained from the stereoscopic particle image velocimetry (SPIV) technique in experiments and direct numerical simulations (DNS) of the Navier

Externí odkaz: https://doaj.org/article/f70c1b52dcc1468596986cd67d9a036d

A Critical Analysis of Turbulence Dissipation in Near Wall flows, based on Stereo Particle Image Velocimetry and Direct Numerical Simulation data

Autor: William K. George, Michel Stanislas, Jean Marc Foucaut, Christophe Cuvier, Jean Philippe Laval

Publikováno v: Journal of Fluid Mechanics
Journal of Fluid Mechanics, 2022, 950, pp.A2. ⟨10.1017/jfm.2022.699⟩

An experiment was performed using stereo particle image velocimetry (SPIV) in the Laboratoire de Mécanique des Fluides de Lille boundary layer facility to determine all the derivative moments needed to estimate the average dissipation rate of the tu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b712dc458af4675c0f8c7deeb1a3220
https://hal.science/hal-03814320

Optimization of regularized B-spline smoothing for turbulent Lagrangian trajectories

Autor: Paul Debue, Adam Cheminet, Valentina Valori, Bérengère Dubrulle, Christophe Cuvier, Fançois Daviaud, Jean-Philippe Laval, Yasar Ostovan, Jean-Marc Foucaut

Publikováno v: Experimental Thermal and Fluid Science
Experimental Thermal and Fluid Science, Elsevier, 2021, 127, pp.110376. ⟨10.1016/j.expthermflusci.2021.110376⟩
Experimental Thermal and Fluid Science, 2021, 127, pp.110376. ⟨10.1016/j.expthermflusci.2021.110376⟩

International audience; The denoising of Lagrangian trajectories based on regularized B-spline is investigated. The aim is to find systematic criteria for optimization of algorithms used in 4D-PTV in order to optimize the quality of 4D-PTV measuremen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95e70ab0df34f5eb2741dfe8e5045034
https://hal.archives-ouvertes.fr/hal-03328992

Characterizing most irregular small-scale structures in turbulence using local Hölder exponents

Autor: Florian Nguyen, Jean-Philippe Laval, Bérengère Dubrulle

Publikováno v: Physical Review E. 102

Two scalar fields characterizing respectively pseudo-H\"older exponents and local energy transfers are used to capture the topology and the dynamics of the velocity fields in areas of lesser regularity. The present analysis is conducted using velocit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::621779eaaf0ad1cefbd72a708b140c86
https://doi.org/10.1103/physreve.102.063105

About Universality and Thermodynamics of Turbulence

Autor: Bérengère Dubrulle, Hugues Faller, François Daviaud, Damien Geneste, Vishwanath Shukla, Ewe-Wei Saw, Florian Nguyen, Jean-Philippe Laval

Publikováno v: Entropy
Entropy, MDPI, 2019, 21 (3), pp.326. ⟨10.3390/e21030326⟩
Volume 21
Issue 3
Entropy, 2019, 21 (3), pp.326. ⟨10.3390/e21030326⟩
Entropy, Vol 21, Iss 3, p 326 (2019)

This paper investigates the universality of the Eulerian velocity structure functions using velocity fields obtained from the stereoscopic particle image velocimetry (SPIV) technique in experiments and direct numerical simulations (DNS) of the Navier

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c27811013ea14a1a650340cb28144857
https://hal.archives-ouvertes.fr/hal-02345598/file/entropy-21-00326-v2.pdf