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YouTuber psidot brings us this amazing effect on on-Newtonian fluids.
The Weissenberg occurs when a spinning rod is inserted into a solution of elastic liquid. YouTuber psidot brings us three examples of this amazing effect along with a key description.
“When a rod mounted in a hand drill is dipped into a liquid and rotated, for certain non-Newtonian fluids the liquid will climb the rod – sometimes to quite spectacular heights. Such rob climbing behaviour is referred to as the Weissenberg Effect,” explains the video’s text.
“Shearing in the flow of the liquid concentrically around the rotating rod causes the component of the stress normal to the circular flow direction to become greater in magnitude compared to the two other mutually
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