## frictional coefficient, $$f$$

in polymer chemistry
https://doi.org/10.1351/goldbook.F02528
A tensor correlating the frictional force, $$F$$, opposing the motion of a particle in a viscous fluid and the velocity $$u$$ of this particle relative to the fluid. In the case of an isolated spherical particle in a viscous @I03353@ fluid, $$f$$ is a constant and $$F=f\ u$$.
Source:
Purple Book, 1st ed., p. 60 [Terms]