The Weissenberg effect is a phenomenon that occurs when a spinning rod is inserted into a
solution
Solution may refer to:
* Solution (chemistry), a mixture where one substance is dissolved in another
* Solution (equation), in mathematics
** Numerical solution, in numerical analysis, approximate solutions within specified error bounds
* Soluti ...
of elastic liquid. Instead of being thrown outward, the solution is drawn towards the rod and rises up around it.
This is a direct consequence of the normal stress that acts like a
hoop stress
In mechanics, a cylinder stress is a stress (physics), stress distribution with rotational symmetry; that is, which remains unchanged if the stressed object is rotated about some fixed axis.
Cylinder stress patterns include:
* circumferential str ...
around the rod.
The effect is named after
Karl Weissenberg.
References
External links
The Isolation of, and the Initial Measurements of the Weissenberg Effect
Viscosity
Rheology
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