Electro-Coalescence Characteristics of Water-in-Oil Emulsion Droplets Under the Action of the Wake Vortex of the Flow Around a Cylinder & Electrostatic Field
To investigate the effect of vortices formed by flow around a cylinder on droplet coa-lescence,the flow process of W/O emulsion in the cylindrical winding field was simulated using a level set model.The changes in fluid volume fraction due to changes in cylindrical diameter,fluid velocity,and electric field strength were analyzed,and the effects of the four flow fields on droplet deformation and coalescence were studied.The results show that the oil-water separation effect is good at three velocities of 0.5,1 and 1.5 m/s.The highest droplet coalescence efficiency is achieved at 6 kV/cm by the combined effect of cylindrical winding field and electric field.
water-in-oil emulsionlevel setflow around a cylinderelectric coalescence
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