Damping inertial modes excitation in a closed grid turbulence experiment under rotation
We report an experimental study of the decay of grid-generated turbulence in a confined geometry submitted to a global rotation. Turbulence is generated by rapidly towing a grid in a parallelepipedic water tank. The velocity fields of a large number of independent decays are measured in a vertical p...
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| Veröffentlicht in: | Journal of physics. Conference series 2011-12, Vol.318 (8), p.082019-11 |
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| container_title | Journal of physics. Conference series |
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| creator | Cortet, P -P Lamriben, C Moisy, F Maas, L R M |
| description | We report an experimental study of the decay of grid-generated turbulence in a confined geometry submitted to a global rotation. Turbulence is generated by rapidly towing a grid in a parallelepipedic water tank. The velocity fields of a large number of independent decays are measured in a vertical plane parallel to the rotation axis using a corotating Particle Image Velocimetry system. We first show that, when a "simple" grid is used, a significant amount of the kinetic energy (typically 50%) is stored in a reproducible flow composed of resonant inertial modes. The possible coupling between these modes and turbulence suggests that turbulence cannot be considered as freely decaying in this configuration. We demonstrate however that these inertial modes may be significantly reduced (down to 15% of the total energy) by adding a set of inner tanks attached to the grid. These results suggest that it is possible to produce an effectively freely decaying rotating turbulence in a confined geometry. |
| doi_str_mv | 10.1088/1742-6596/318/8/082019 |
| format | Article |
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These results suggest that it is possible to produce an effectively freely decaying rotating turbulence in a confined geometry.</description><subject>Damping</subject><subject>Decay</subject><subject>Decomposition</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Inertial</subject><subject>Kinetic energy</subject><subject>Particle image velocimetry</subject><subject>Physics</subject><subject>Rotation</subject><subject>Turbulence</subject><subject>Turbulent flow</subject><subject>Velocity distribution</subject><subject>Water tanks</subject><issn>1742-6596</issn><issn>1742-6588</issn><issn>1742-6596</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNkE1LBCEYgCUK2rb-Qghdukzj14x6jO0Tgi5FR3HUWVxmx0lnoP59LhMRsYe8KLzPI_oAcI7RFUZClJgzUtSVrEuKRSlKJAjC8gAsfgaHv87H4CSlDUI0L74Abzd6O_h-DX3v4uh1B7fBugTdh_GjHn3o8wRqaLqQnIXr6C0cp9hMneuNy9jgot-6foRTb12EMczWKThqdZfc2fe-BK93ty-rh-Lp-f5xdf1UGCrxWDDLKWmsFUY2VLeiFlIyxBBiRFNb60aLCjFJqramhNMacYsFR7SSElNTtXQJLud7hxjeJ5dGtfXJuK7TvQtTUphXtEKESZrRiz_oJkyxz69TpOKSsZpleAnqmTIxpBRdq4b8QR0_FUZq11vtUqpdSpV7K6Hm3lnEs-jD8H-n2OPsZdVgW_oFMW2OVA</recordid><startdate>20111222</startdate><enddate>20111222</enddate><creator>Cortet, P -P</creator><creator>Lamriben, C</creator><creator>Moisy, F</creator><creator>Maas, L R M</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7U5</scope><scope>8BQ</scope><scope>JG9</scope></search><sort><creationdate>20111222</creationdate><title>Damping inertial modes excitation in a closed grid turbulence experiment under rotation</title><author>Cortet, P -P ; Lamriben, C ; Moisy, F ; Maas, L R M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-4d732bdd8c9b3af868994040042a3d6aba8504925f63273607d1870359913c5f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Damping</topic><topic>Decay</topic><topic>Decomposition</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Inertial</topic><topic>Kinetic energy</topic><topic>Particle image velocimetry</topic><topic>Physics</topic><topic>Rotation</topic><topic>Turbulence</topic><topic>Turbulent flow</topic><topic>Velocity distribution</topic><topic>Water tanks</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cortet, P -P</creatorcontrib><creatorcontrib>Lamriben, C</creatorcontrib><creatorcontrib>Moisy, F</creatorcontrib><creatorcontrib>Maas, L R M</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>Advanced Technologies & Aerospace Database (1962 - current)</collection><collection>ProQuest Central Essentials</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection (Proquest) (PQ_SDU_P3)</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Materials Research Database</collection><jtitle>Journal of physics. 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| subjects | Damping Decay Decomposition Fluid dynamics Fluid flow Inertial Kinetic energy Particle image velocimetry Physics Rotation Turbulence Turbulent flow Velocity distribution Water tanks |
| title | Damping inertial modes excitation in a closed grid turbulence experiment under rotation |
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