Dye flow visualization through a thick-barred grid.

Figure 1. Turbulence generating grids and flow visualization of dye released at the centre of the largest opening of each grid.

Abstract


The recent advent and popularity of multi-scale or fractal turbulence generators has spawned a resurgence in grid turbulence experiments.  Multi-scale generators have been shown to extend the initial production region in the wake of turbulence generating grids, and it has been hypothesized that this would result in favourable mixing characteristics.

Planar-laser induce florescence (PLIF) studies are ongoing, but some initial dye visualization images are shown below.



Project leader(s) : Dr R. Jason Hearst, Dr Christina Vanderwel

Main supervisor(s): Prof. Ganapathisubramani

Phy​sics of fractal turbulence