The current work focuses on numerical study on dynamics of a droplet with electric field under adiabatic conditions in order to understand the pure effect of electric stresses on droplet movement along with its deformation. A numerical study implementing axisymmetric finite element modelling and adopting level set framework of tracking interface is created. The electric force model combining the techniques available in literature is used. Simple boundary conditions have been specified at each and every boundary. High potential is applied to washer shaped electrode and this analysis is focused on droplet deformation under 6 kV. To validate this with experiments, droplet profiles computed numerically is matched to experimental profiles taken through MATLAB code. Local electric force and average electric force have been computed in order to quantify the forces in interface. The analysis showed that electric force is higher for the droplet of higher volume and several oscillations are seen across the thin interface line.
Numerical investigations on droplet shapes with electric field
Rajan V. K.;Garivalis A. I.;Di Marco P.
2019-01-01
Abstract
The current work focuses on numerical study on dynamics of a droplet with electric field under adiabatic conditions in order to understand the pure effect of electric stresses on droplet movement along with its deformation. A numerical study implementing axisymmetric finite element modelling and adopting level set framework of tracking interface is created. The electric force model combining the techniques available in literature is used. Simple boundary conditions have been specified at each and every boundary. High potential is applied to washer shaped electrode and this analysis is focused on droplet deformation under 6 kV. To validate this with experiments, droplet profiles computed numerically is matched to experimental profiles taken through MATLAB code. Local electric force and average electric force have been computed in order to quantify the forces in interface. The analysis showed that electric force is higher for the droplet of higher volume and several oscillations are seen across the thin interface line.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
