Etude du sillage stratifié d'un cylindre

Download or read book Etude du sillage stratifié d'un cylindre written by Mickael Bosco and published by . This book was released on 2015 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study has been delineated of a stratified wake of a circular cy- linder in order to describe the effect of the tilt and of the stratification on the 3D instabilities of the wake. Principally, four unstable modes have been figured out.These results highlight the fact that the stratification strongly modifies the transition from a 2D to a 3D flow in a cylinder wake, with the presence of new unstable modes. The tilt of the cylinder with respect to the vertical plays a major role, such that a study limited to a vertical or a horizontal cylinder misses a lot of the rich dynamics of the tilted wake.