### Polymer Nanoﬁbers via Nozzle-Free Centrifugal Spinning

2012-4-2 · is the angular speed, R) 0.0325 m is the radius of the chuck, and r is the distance of the polymer solution from the center of the chuck in cylindrical coordinates. The characteristic length scale of the instability is then given by L) (hγ/(Fω2R))1/3, where ∂/∂r ∼ L-1.Using the parameters ω) 500 s-1, γ) 0.01 kg/s2, F)103 kg/m3, and h) 0.1 µm, one obtains L) 4 µm for the wavelength ...

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