A Cryogenic High-Reynolds Turbulence Experiment at CERN
| Autor: | Sylvain S. Pietropinto, Benoît Chabaud, Jean-Paul Barbier-Neyret, C. Guttin, Bernard Castaing, Yves Gagne, G. Garde, Yves Ladam, J.L. Bret, M. Pezzetti, Bernard Hébral, A. Bézaguet, Christophe Baudet, J.P. Dauvergne, O. Pirotte, S. Knoops, Philippe Lebrun, Philippe-Emmanuel Roche, Cédric Poulain, Franck Vittoz |
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| Přispěvatelé: | European Organization for Nuclear Research (CERN), Centre de Recherches sur les Très Basses Températures (CRTBT), Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Université Joseph Fourier - Grenoble 1 (UJF), Laboratoire des Écoulements Géophysiques et Industriels [Grenoble] (LEGI), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Laboratoire de Physique de l'ENS Lyon (Phys-ENS), École normale supérieure - Lyon (ENS Lyon)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Université Joseph Fourier - Grenoble 1 (UJF)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL) |
| Jazyk: | angličtina |
| Rok vydání: | 2001 |
| Předmět: |
010302 applied physics
Physics Cryostat Large Hadron Collider Turbulence Liquid helium Nuclear engineering chemistry.chemical_element Cryogenics Superconducting magnet Helium cryogenics 01 natural sciences 7. Clean energy Accelerators and Storage Rings 010305 fluids & plasmas law.invention [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] Nuclear physics Physics::Fluid Dynamics chemistry law 0103 physical sciences [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] Helium |
| Zdroj: | Advances in Cryogenic Engineering Advances in Cryogenic Engineering, 2002, 386, pp.512-516. ⟨10.1063/1.1472170⟩ |
| Popis: | The potential of cryogenic helium flows for studying high-Reynolds number turbulence in the laboratory has been recognised for a long time and implemented in several small-scale hydrodynamic experiments. With its large superconducting particle accelerators and detector magnets, CERN, the European Laboratory for Particle Physics, has become a major world center in helium cryogenics, with several large helium refrigerators having capacities up to 18 kW @ 4.5 K. Combining a small fraction of these resources with the expertise of three laboratories at the forefront of turbulence research, has led to the design, swift implementation, and successful operation of GReC (Grands Reynolds Cryogeniques) a large axisymmetric turbulent-jet experiment. With flow-rates up to 260 g/s of gaseous helium at ≈ 5 K and atmospheric pressure, Reynolds numbers up to 10 7 have been achieved in a 4.6 m high, 1.4 m diameter cryostat. This paper presents the results of the first runs and describes the experimental set-up comprehensively equipped with "hot" wire micro-anemometers, acoustic scattering vorticity measurements and a large-bandwidth data acquisition system. |
| Databáze: | OpenAIRE |
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