TEMPERATURE SMALL SCALES STATISTICS IN TURBULENT CONVECTIVE TILTED CHANNEL FLOW etc15 Tracking Number 349Presentation: Session: Intermittency and scaling 2 Room: Room G Session start: 15:00 Tue 25 Aug 2015 Eleonore Rusaouen eleonore.rusaouen@neel.cnrs.fr Affifliation: Institut Néel , Grenoble, Fance Julien Salort julien.salort@ens-lyon.fr Affifliation: Ecole Normale Supérieure de Lyon, Lyon, France Bernard Castaing beranrd.castaing@ens-lyon.fr Affifliation: Ecole Normale Supérieure de Lyon, Lyon, France Francesca Chilla francesca.chilla@ens-lyon.fr Affifliation: Ecole Normale Supérieure de Lyon, Lyon, France Topics: - Intermittency and scaling, - Thermally driven turbulence Abstract: We report here the small scales statistics of velocity en temperature in a turbulent convective flow : a channel connecting two chambers. This flow, differently from Rayleigh-B\'enard, is independent from the thermal boundary layers and can be influenced by stratification if tilted. The probability distribution functions of the temperature and velocity are gaussian while the temperature power spectra exhibit a Bolgiano-Obukov scaling at all angles. |