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Rousset B, Bonnay P, Diribarne P, Girard A, Poncet JM, Herbert E, Salort J, Baudet C, Castaing B, Chevillard L, Daviaud F, Dubrulle B, Gagne Y, Gibert M, Hébral B, Lehner T, Roche PE, Saint-Michel B, Bon Mardion M. Superfluid high REynolds von Kármán experiment. Rev Sci Instrum 2014; 85:103908. [PMID: 25362417 DOI: 10.1063/1.4897542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The Superfluid High REynolds von Kármán experiment facility exploits the capacities of a high cooling power refrigerator (400 W at 1.8 K) for a large dimension von Kármán flow (inner diameter 0.78 m), which can work with gaseous or subcooled liquid (He-I or He-II) from room temperature down to 1.6 K. The flow is produced between two counter-rotating or co-rotating disks. The large size of the experiment allows exploration of ultra high Reynolds numbers based on Taylor microscale and rms velocity [S. B. Pope, Turbulent Flows (Cambridge University Press, 2000)] (Rλ > 10000) or resolution of the dissipative scale for lower Re. This article presents the design and first performance of this apparatus. Measurements carried out in the first runs of the facility address the global flow behavior: calorimetric measurement of the dissipation, torque and velocity measurements on the two turbines. Moreover first local measurements (micro-Pitot, hot wire,…) have been installed and are presented.
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Affiliation(s)
- B Rousset
- Université Grenoble Alpes, INAC-SBT, F-38000 Grenoble, France
| | - P Bonnay
- Université Grenoble Alpes, INAC-SBT, F-38000 Grenoble, France
| | - P Diribarne
- Université Grenoble Alpes, INAC-SBT, F-38000 Grenoble, France
| | - A Girard
- Université Grenoble Alpes, INAC-SBT, F-38000 Grenoble, France
| | - J M Poncet
- Université Grenoble Alpes, INAC-SBT, F-38000 Grenoble, France
| | - E Herbert
- Laboratoire Interdisciplinaire des Énergies de Demain (LIED) - CNRS-UMR 8236, Université Paris Diderot - Sorbonne Paris Cite, Paris, France
| | - J Salort
- Laboratoire de Physique de l'ENS de Lyon, CNRS/Université Lyon, F-69364 Lyon cedex 7, France
| | - C Baudet
- Université Grenoble Alpes, INAC-SBT, F-38041 Grenoble, France
| | - B Castaing
- Laboratoire de Physique de l'ENS de Lyon, CNRS/Université Lyon, F-69364 Lyon cedex 7, France
| | - L Chevillard
- Laboratoire de Physique de l'ENS de Lyon, CNRS/Université Lyon, F-69364 Lyon cedex 7, France
| | - F Daviaud
- Laboratoire SPHYNX, CEA/IRAMIS/SPEC, CNRS URA 2464, F-91191 Gif-sur-Yvette, France
| | - B Dubrulle
- Laboratoire SPHYNX, CEA/IRAMIS/SPEC, CNRS URA 2464, F-91191 Gif-sur-Yvette, France
| | - Y Gagne
- Université Grenoble Alpes, INAC-SBT, F-38041 Grenoble, France
| | - M Gibert
- Université Grenoble Alpes, Inst NEEL, F-38042 Grenoble, France
| | - B Hébral
- Université Grenoble Alpes, Inst NEEL, F-38042 Grenoble, France
| | - Th Lehner
- LUTH, Observatoire Paris-Meudon, 5 Pl. Jules Janssen, F-92195 Meudon Cedex, France
| | - P-E Roche
- Université Grenoble Alpes, Inst NEEL, F-38042 Grenoble, France
| | - B Saint-Michel
- Laboratoire SPHYNX, CEA/IRAMIS/SPEC, CNRS URA 2464, F-91191 Gif-sur-Yvette, France
| | - M Bon Mardion
- Université Grenoble Alpes, INAC-SBT, F-38000 Grenoble, France
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Rusaouen E, Riedinger X, Tisserand JC, Seychelles F, Salort J, Castaing B, Chillà F. Laminar and intermittent flow in a tilted heat pipe. Eur Phys J E Soft Matter 2014; 37:4. [PMID: 24464137 DOI: 10.1140/epje/i2014-14004-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 09/16/2013] [Accepted: 01/10/2014] [Indexed: 06/03/2023]
Abstract
Heat transfer measurements performed by Riedinger et al. (Phys. Fluids, 25, 015117 (2013)) showed that in an inclined channel, heated from below and cooled from above with adiabatic walls, the flow is laminar or intermittent (local bursts can occur in the laminar flow) when the inclination angle is sufficiently high and the applied power sufficiently low. In this case, gravity plays a crucial role in the characteristics of the flow. In this paper, we present velocity measurements, and their derived tensors, obtained with Particle Image Velocimetry inside the channel. We, also, propose a model derived from a jet interpretation of the flow. Comparison between experiment and model shows a fair agreement.
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Affiliation(s)
- E Rusaouen
- Laboratoire de Physique de l'Ecole Normale Supérieure de Lyon UMR5672, 46 allée d'Italie, 69364, Lyon Cedex 07, France
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Salort J, Monfardini A, Roche PE. Cantilever anemometer based on a superconducting micro-resonator: application to superfluid turbulence. Rev Sci Instrum 2012; 83:125002. [PMID: 23278018 DOI: 10.1063/1.4770119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
We present a new type of cryogenic local velocity probe that operates in liquid helium (1 K < T < 4.2 K) and achieves a spatial resolution of ≈ 0.1 mm. The operating principle is based on the deflection of a micro-machined silicon cantilever which reflects the local fluid velocity. Deflection is probed using a superconducting niobium micro-resonator sputtered on the sensor and used as a strain gauge. We present the working principle and the design of the probe, as well as calibration measurements and velocity spectra obtained in a turbulent helium flow above and below the superfluid transition.
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Affiliation(s)
- J Salort
- Institut Néel, CNRS/UJF BP 166, 38042 Grenoble cedex 9, France
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