Experimental test of the crossover between the inertial and the dissipative range in a turbulent swirling flow
| Autor: | Nicolás Wschebor, F. Daviaud, Denis Kuzzay, Paul Debue, Léonie Canet, Ewe-Wei Saw, Vincent Rossetto, Bérengère Dubrulle |
|---|---|
| Přispěvatelé: | Systèmes Physiques Hors-équilibre, hYdrodynamique, éNergie et compleXes (SPHYNX), Service de physique de l'état condensé (SPEC - UMR3680), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de physique et modélisation des milieux condensés (LPM2C), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Universidad de la República [Montevideo] (UDELAR), ANR-16-CE06-0006,EXPLOIT,Etude expérimentale des structures dissipatives en turbulence(2016), Universidad de la República [Montevideo] (UCUR) |
| Rok vydání: | 2018 |
| Předmět: |
[PHYS.PHYS.PHYS-FLU-DYN]Physics [physics]/Physics [physics]/Fluid Dynamics [physics.flu-dyn]
Fluid Flow and Transfer Processes Physics Inertial frame of reference Turbulence turbulence Crossover Computational Mechanics Mechanics Renormalization group Kinetic energy 01 natural sciences spectrum 010305 fluids & plasmas Physics::Fluid Dynamics Flow (mathematics) wavelet Modeling and Simulation 0103 physical sciences Dissipative system Statistical physics renormalization group Exponential decay 010306 general physics |
| Zdroj: | Physical Review Fluids Physical Review Fluids, 2018, 3 (2), pp.024602. ⟨10.1103/PhysRevFluids.3.024602⟩ Physical Review Fluids, American Physical Society, 2018, 3 (2), pp.024602. ⟨10.1103/PhysRevFluids.3.024602⟩ |
| ISSN: | 2469-990X |
| DOI: | 10.1103/physrevfluids.3.024602 |
| Popis: | International audience; The kinetic energy spectrum of high-Reynolds turbulent swirling flows is experimentally studied. This spectrum, obtained from direct measurements in space, exhibits nearly two decades of Kol-mogorov k −5/3 decay in the inertial range of scales. Beyond this regime, in the dissipative range of scales, a crossover to a stretched exponential decay on scale k 2/3 is observed, in full agreement with a recent theoretical prediction based on Non-Perturbative Renormalization Group theory. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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