Optimal mixing of powder in liquid

I am in the process of testing this, but it appears to me that the sudden transition from laminar to chaotic flow is where optimal mixing occurs, such as dissolving sugar in water. If you stir the water smoothly the sugar will slowly dissolve, if however you stir smoothly then suddenly reverse the course of the stirrer here is suddenly chaotic flow which seems to result in much greater dissolution. This is because when the flow of water is laminar or quasi laminar, such as when it is smoothly stirred, the particulate matter, for example the sugar, is not impacted as violently or as often by the water molecules, as when the flow is chaotic. This is in contrast to adding the particulate to the water, in which case the greatest average velocity of the water is caused by the laminar stirring, but once the particles are added and accellerate to the speed of the water flow, a chaotic method would best dissolve them.

I'm calling this observation Davidian Dissolution.