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We study the effects of a controlled gas flow on the dynamics of electrifiedjets in the electrospinning process. The main idea is to model the air drageffects of the gas flow by using a non-linear Langevin-like approach. The modelis employed to investigate the dynamics of electrified polymer jets atdifferent conditions of air drag force, showing that a controlled gascounterflow can lead to a decrease of the average diameter of electrospunfibers, and potentially to an improvement of the quality of electrospunproducts. We probe the influence of air drag effects on the bendinginstabilities of the jet and on its angular fluctuations during the process.The insights provided by this study might prove useful for the design of futureelectrospinning experiments and polymer nanofiber materials.

Three-Dimensional Model for Electrospinning Processes in Controlled Gas Counterflow