Abstract
Fog stream velocity profiles were analysed inside narrow and wide flat channels. To calculate the shear viscosity coefficient, we used the Navier–Stokes equation. It was revealed that fog is a non-Newtonian liquid: its viscosity grows when the shear speed drops, and it can exceed the viscosity of clean air hundreds of times when the speed gradient is less than 0.01 sec−1. The high viscosity can be explained by the electrostatic interaction of the charged water drops.
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