Created: 24 Mar 2017, 08:50,
Updated: 27 Mar 2017, 07:03
Strongly stratified turbulence is a possible interpretation of oceanic and atmospheric measurements. However, this regime has never been produced in a laboratory experiment because 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 horizontal particles image velocimetry (PIV) and stereo 2D vertical PIV. Five density-temperature probes are used to measure vertical and horizontal profiles and signals at fixed positions.