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Different regimes of the uniaxial elongation of electrically charged viscoelastic jets due to dissipative air drag
Institution:1. Istituto per le Applicazioni del Calcolo CNR, Via dei Taurini 19, 00185 Rome, Italy;2. Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria;3. Dipartimento di Matematica e Fisica “Ennio De Giorgi”, University of Salento, via Arnesano, 73100 Lecce, Italy;4. Istituto Nanoscienze-CNR, Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT), via Arnesano, I-73100 Lecce, Italy;1. Department of Mathematics and Statistics, University of Helsinki, Gustaf Hällströmin katu 2a, Helsinki, 00014, Finland;2. Department of Mathematics, Bar-Ilan University, Ramat-Gan 5290002, Israel;3. Institute of Mathematics, University of Vienna, Vienna 1090, Austria;1. Center for Advanced Life Cycle Engineering, University of Maryland, College Park, MD 20742, United States;2. Department of Electronic Engineering, City University of Hong Kong, Hong Kong;1. DEIM, University of Tuscia, Largo dell’Università, 01100 Viterbo, Italy;2. Department of Enterprise Engineering, University of Rome “Tor Vergata”, Via del Politecnico 1, 00133 Rome, Italy
Abstract:We investigate the effects of dissipative air drag on the dynamics of electrified jets in the initial stage of the electrospinning process. The main idea is to use a Brownian noise to model air drag effects on the uniaxial elongation of the jets. The developed numerical model is used to probe the dynamics of electrified polymer jets at different conditions of air drag force, showing that the dynamics of the charged jet is strongly biased by the presence of air drag forces. This study provides prospective beneficial implications for improving forthcoming electrospinning experiments.
Keywords:Electrospinning  Air drag  Viscoelasticity  Nanofibers
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