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Modelling and Simulation of Electrically Controlled Droplet Dynamics

Ouédraogo, Yun and Gjonaj, Erion and Weiland, Thomas and De Gersem, Herbert and Steinhausen, Christoph and Lamanna, Grazia and Weigand, Bernhard and Preusche, Andreas and Dreizler, Andreas Langer, U. and Amrhein, W. and Zulehner, W. (eds.) (2018):
Modelling and Simulation of Electrically Controlled Droplet Dynamics.
In: Mathematics in Industry, In: Scientific Computing in Electrical Engineering, pp. 101-109, Springer, ISBN 978-3-319-75537-3,
DOI: 10.1007/978-3-319-75538-0_10,
[Book Section]

Abstract

The electrohydrodynamics of millimetric droplets under the influence of slowly varying electric fields is considered. Strong electric fields applied on liquids induce forces driving fluid motion. This effect can be used, among others, in on-demand droplet generators. In this work, we discuss a convection-conduction model for the simulation of droplet motion in strong electric fields. The model focuses on robustness with respect to topology changes and on dynamic charging effects in liquids. We illustrate the model with the simulation of electrically driven droplet generation. The simulated dynamics for droplets with different conductivities are compared with experiments.

Item Type: Book Section
Erschienen: 2018
Editors: Langer, U. and Amrhein, W. and Zulehner, W.
Creators: Ouédraogo, Yun and Gjonaj, Erion and Weiland, Thomas and De Gersem, Herbert and Steinhausen, Christoph and Lamanna, Grazia and Weigand, Bernhard and Preusche, Andreas and Dreizler, Andreas
Title: Modelling and Simulation of Electrically Controlled Droplet Dynamics
Language: English
Abstract:

The electrohydrodynamics of millimetric droplets under the influence of slowly varying electric fields is considered. Strong electric fields applied on liquids induce forces driving fluid motion. This effect can be used, among others, in on-demand droplet generators. In this work, we discuss a convection-conduction model for the simulation of droplet motion in strong electric fields. The model focuses on robustness with respect to topology changes and on dynamic charging effects in liquids. We illustrate the model with the simulation of electrically driven droplet generation. The simulated dynamics for droplets with different conductivities are compared with experiments.

Title of Book: Scientific Computing in Electrical Engineering
Series Name: Mathematics in Industry
Number: 28
Publisher: Springer
ISBN: 978-3-319-75537-3
Divisions: 16 Department of Mechanical Engineering
18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute of Electromagnetic Field Theory (from 01.01.2019 renamed Institute for Accelerator Science and Electromagnetic Fields)
Profile Areas
Profile Areas > Thermo-Fluids & Interfaces
16 Department of Mechanical Engineering > Institute of Reactive Flows and Diagnostics (RSM)
Date Deposited: 12 Dec 2018 09:43
DOI: 10.1007/978-3-319-75538-0_10
Additional Information:

TEMF-Pub-DB TEMF002687, Also part of the 11th International Conference on Scientific Computing in Electrical Engineering / October 3-7, 2016, St. Wolfgang, Austria

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