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First report of the MILESTONE experiment: strongly stratified turbulence and mixing efficiency in the Coriolis platform
LEGI, Université Grenoble Alpes.
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0002-1146-3241
LEGI, Université Grenoble Alpes.
LMFA, École Centrale de Lyon.
Show others and affiliations
2016 (English)In: VIIIth International Symposium on Stratified Flows (ISSF), 2016, 2016Conference paper, Published paper (Refereed)
Abstract [en]

Strongly stratified turbulence is a possible interpretation of oceanic and atmospheric mea-surements. However, this regime has never been produced in a laboratory experiment be-cause of the two conditions of very small horizontal Froude number Fh and large buoyancy Reynolds number R which require a verily large experimental facility. We present a new attempt to study strongly stratified turbulence experimentally in the Coriolis platform.The flow is forced by a slow periodic movement of an array of six vertical cylinders of 25 cm diameter with a mesh of 75 cm. Five cameras are used for 3D-2C scanned horizontalparticles image velocimetry (PIV) and stereo 2D vertical PIV. Five density-temperatureprobes are used to measure vertical and horizontal profiles and signals at fixed positions.The first preliminary results indicate that we manage to produce strongly stratified tur-bulence at very small Fh and large R in a laboratory experiment.

Place, publisher, year, edition, pages
2016.
Keywords [en]
stratified turbulence, PIV
National Category
Fluid Mechanics and Acoustics Meteorology and Atmospheric Sciences Oceanography, Hydrology and Water Resources
Identifiers
URN: urn:nbn:se:kth:diva-198680OAI: oai:DiVA.org:kth-198680DiVA, id: diva2:1058332
Conference
VIIIth International Symposium on Stratified Flows, San Diego, USA, August 29 - September 1, 2016
Projects
MILESTONE: Mixing and length scales in Stratified Turbulence
Funder
EU, European Research Council, SGM 76437
Note

QC 20170109

Available from: 2016-12-20 Created: 2016-12-20 Last updated: 2018-01-13Bibliographically approved

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https://joss.ucar.edu/meetings/2016/8th-international-symposium-stratified-flows-issfPublished version

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