Skin friction, or viscous drag, is that which swimmers may experience.
Fischer, T. M., Dhar, P. & Heinig, P. The viscous drag of spheres and filaments moving in membranes or monolayers.
For example, surface effects, such as surface tension, capillary forces, adhesion and viscous drag, become very important at the microscale.
The sum of fiber drag coefficient and viscous drag coefficient is called as total drag coefficient.
Viscosity produces viscous drag and affects pressure (inertial) drag and the drag coefficient.
Three major factors: the Coulomb, viscous drag and pressure forces have been investigated.
Here, we show experimentally that a particle straddling an air/water interface feels a large viscous drag that is unexpectedly larger than that measured in the bulk.
He said, "If I take this particle and I move it, there's a viscous drag in the fluid, and that slows it down.
To reduce viscous drag, swimmers attempt to make contact surfaces as smooth as possible by wearing swim caps and shaving their legs.
Other forces such as the viscous drag, van der Waals forces, and solid solid friction forces are found negligible.
Such oscillatory behavior is characterized by an equation that consists of capillary force, viscous drag, and gravity.
