Tornado Like Flows: Experiments on Generation and Stability

Abstract

In the present work the investigation of possibility of controlling the behavior of free concentrated vortexes generated under laboratory conditions over an underlying surface heated from below was carried out experimentally. The method consists of the creation of obstacles on the vortex path in the form of vertical and horizontal grids with different height and size of cells. Comparison is performed of the mechanisms and of the degrees of effect made by vertical and horizontal grids on the behavior of vortex structures.