Modeling the Effect of an Electric Field on Drop Flows


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A stand has been developed for modeling the effect of an electric field on the structure and dynamics of drop flows. The system of fundamental equations of fluid mechanics was chosen as the theoretical basis of the technique, including the equations of state for the Gibbs potential and the density of the medium, differential equations of continuity and transfer of momentum, matter and energy, the properties of which are analyzed tak-ing into account the compatibility condition. The estimates of the total energy compo-nents, the main dimensionless parameters of the flows under study, are given. A high-resolution video recording of the flow pattern was carried out under the gravitational separation of a freely falling drop and under the additional action of an external electro-static field. The evolution of the shape and dynamics of the movement of structural components - the drop itself and the satellite, as well as the secondary satellite in the ab-sence of an electric field - is traced.

gravity, high-voltage source, separation, droplet, satellite

DOI: http://doi.org/10.33257/PhChGD.24.4.1057


Volume 24, issue 4, 2023 year


Моделирование влияния электрического поля на капельные течения

Разработан стенд для моделирования влияния электрического поля на структуру и динамику капельных течений. В качестве теоретической основы методики выбрана система фундаментальных уравнений механики жидкостей, включаю-щая уравнения состояния для потенциала Гиббса и плотности среды, дифферен-циальные уравнения неразрывности и переноса импульса, вещества и энергии, свойства которой анализируются с учетом условия совместности. Приведены оценки компонентов полной энергии, основных безразмерных параметров изу-чаемых течений. Проведена высокоразрешающая видеорегистрация картины те-чения при гравитационном отрыве свободно падающей капли и при дополни-тельном воздействии внешнего электростатического поля. Прослежена эволю-ция формы и динамики движения структурных компонентов – собственно кап-ли и сателлита, а также вторичного сателлита в отсутствие электрического поля.

гравитация, высоковольтный источник, отрыв, капля, сателлит

DOI: http://doi.org/10.33257/PhChGD.24.4.1057


Volume 24, issue 4, 2023 year



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