Wave propagation of bending jet in electrospinning process

The electrospinning process features bending jets in space and solidified nanofibers on a collector. Although electrospun have been widely applied, the wave characteristics, especially first jet bend tapered envelope cone profile, of are not fully comprehended. In this work, spatial normal mode k− is true to characterize convective instability jet. Some real variables measured calculated. It observed that occurs at end. grows quickly early stage wave. Underdeveloped dispersive waves temporally spatially unstable. When develop mature stage, slowly, developed only Furthermore, energy ratio electric kinematic accounts for characteristics A high may stabilize jet, very low destabilizes stabilizing effect suppresses growth source. Once residual charges within trigger small perturbations field near plate owing Coulomb repulsive like charges, destabilizing causes rapid development perturbation inhomogeneous distribution contributes profile Numerically experimentally, speed order 1 m/s, rate 102 m−1. numerical results accordance with experimental results.