The dropping mechanism in the electrospinning process is elucidated. A moving jet becomes thinner at initial stage due to acceleration caused by electrostatic force. When diameter reaches a threshold, beyond which breaks into drops and daughter jets, occurs. will finally form microspheres. Effects of applied voltage, flow rate, polymer?s concentration, receptor?s distance on are theoretically a...

Abstract Electrospinning is a common and versatile process to produce nanofibers deposit them on collector as two-dimensional nanofiber mat or three-dimensional (3D) macroscopic arrangement. However, 3D electroconductive collectors with complex geometries, including protruded, curved, recessed regions, generally caused hampering of conformal deposition incomplete covering electrospun nanofibers...

Nowadays, several models of unidimensional fluid jets exploit discrete element methods. In some cases, as for models aiming at describing the electrospinning nanofabrication process of polymer fibers, discrete element methods suffer a non-constant resolution of the jet representation. We develop a dynamic meshrefinement method for the numerical study of the electro-hydrodynamic behavior of char...