These graphics show the turbulent vortices forming behind the blades of a Rushton turbine. The vortices are visualized by means of an iso-surface of vorticity magnitude, and are colored by velocity magnitude. The vortices are shown in a 3-D view, a side view and a top view. The top view shows the vortices in a manner that is similar to the first experimental visualizations done using rotating video cameras in the 1970s.
These simulations were published in the proceedings of the 10th European Conference on Mixing, in a paper titled "The Use of Large Eddy Simulation to Study Stirred Vessel Hydrodynamics" (PDF file; 1Mb).
You can click on each image to view a GIF animation. The GIF animations are between 2 and 6MB in size and may take quite a while to download. You can save the animations to disk by clicking on the links with your right mouse button and selecting "Save ... as."
3-D view. GIF Animation (6MB).
Side view. GIF Animation (3.5MB).
Side view. GIF Animation (2.7MB).
3-D view. Interaction between impeller and baffles. GIF Animation (8MB).
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