Numerical Modeling of the Processes of Coagulation and Dispersion of Drops in Electric Field

K. V. Tarantsev

Abstract


Results of the physical and mathematical modeling of the processes of producing and disintegrating water-oil emulsions using the COMSOL Multiphysics software, as well as of electric fields, velocity fields, and pressure fields, under boundary conditions that correspond to the apparatuses under development are presented. Based on the analysis of the data obtained, different versions of the design of electric dispersers and electric dehydrators are proposed.
Key words: Electric dispersers; Design; Modernization; Physicochemical characteristics; Emulsion; Model fluids; Drop diameter; Field strength

Keywords


Electric dispersers; Design; Modernization; Physicochemical characteristics; Emulsion; Model fluids; Drop diameter; Field strength

Full Text:

PDF

References


[1] Taylor, G. (1966). Studies in electrohydrodynamics. I. The circulation produced in a drop by electric field. Proc. R. Soc., 291, 159-166.

[2] Feng, J. Q., & Scott, T. C. (1966) A computational analysis of electrohydrodynamics of a leaky dielectric drop in an electric field. J. Fluid Mech., 311, 289-326.

[3] Sherwood, J. D. (1988). Breakup of fluid droplets in electric and magnetic fields. J. Fluid Mech., 188, 133-146.

[4] Lac, E., & Homsy, G. M. (2007). Axisymmetric deformation and stability of a viscous drop in a steady electric field. J. Fluid Mech., 590, 239-264.

[5] Ajayi, O. O. (1978). A note on Taylor’s electrohydrodynamic theory. Proc. R. Soc., 364, 499-507.

[6] Brazier-Smith, P. R. (1971). Stability and shape of isolated and pairs of water drops in an electric field. Phys. Fluids, 14, 1-6.

[7] Brazier-Smith, P. R., Jennings, S. G., & Latham, J. (1971). An investigation of the behavior of drops and drop-pairs subjected to strong electric forces. Proc. R. Soc., 325, 363-376.

[8] Sozou, C. (1979). Development of the flow field of a point force in an infinite fluid. J. Fluid Mech., 91, 541-546.

[9] Zhang, X., Basaran, O. A., & Wham, R. M. (1995). Theoretical prediction of electric field-enhanced coalescence of spherical drops. AIChE J., 41, 1629-1639.

[10] Baygents, J. C., Rivette, N. J., & Stone, H. A. (1998). Electrohydrodynamic deformation and interaction of drop pairs. J. Fluid Mech., 368, 359-375.

[11] Atten, P. (1993). Electrocoalescence of water droplets in an insulating liquid. J. Electrostat., 30, 259-270.

[12] Urdahl, O., Wayth, N. J., Fordedal, H., Williams, T. J., Bailey, A. G. (2001). Compact electrostatic coalesce technology. In M. Dekker Ed., Encyclpedic handbook of emulsion technology. New York.

[13] Harpur, I. G., Wayth, N. J., Bailey, A. G., Williams, T. J., & Urdahl, O. (1997). Destabilization of water-in-oil emulsions under the influence of an A.C. electric field: Experimental assessment of performance. J. Electrostat., 40 & 41, 135-140.

[14] Friedemann, J. D., Nilsen, P. J., Sother, O., & Sjoblom, J. (2001). An alternative method for establishing parameters for novel coalesce designs. In: 4th International Symposium on the Chemistry and Physics of Petroleum-Water Emulsions II.

[15] Tarantsev, K. V., & Korosteleva, A. V. (2013). Laws governing electrohydrodynamic dispersion of water in oil products. Chemical and Petroleum Engineering, 49(1-2), 92-98.

[16] Tarantsev, K. V., Krasnaya, E. G., Chirkov, V. A., & Ashikhmin, I. A. (2013). Breakdown of water-oil emulsions in an electric field. Chemical and Petroleum Engineering, 49(7-8), 435-439.

[17] Tarantsev, K. V. (2013). Modeling of the processes of coagulation and dispersion of water in low-conductive fluids in an electric field. Surface Engineering and Applied Electrochemistry, 49(5), 414-422.

[18] Rumscheidt, F. D., & Mason, S. G. (1961). Particle motions in sheared suspensions XII. Deformation and burst of fluid drops in shear and hyperbolic flow. J. Colloid Interface Sci., 16, 238-261.

[19] Allan, R. S., & Mason, S. G. (1962). Particle behavior in shear and electric fields. I. Deformation and burst of fluid drops. Proc. Roy. Soc., 267, 45-61.




DOI: http://dx.doi.org/10.3968%2Fj.aped.1925543820140701.1958

Refbacks

  • There are currently no refbacks.


Reminder

If you have already registered in Journal A and plan to submit article(s) to Journal B, please click the CATEGORIES, or JOURNALS A-Z on the right side of the "HOME".

We only use three mailboxes as follows to deal with issues about paper acceptance, payment and submission of electronic versions of our journals to databases:
caooc@hotmail.com; aped@cscanada.net; aped@cscanada.org

Copyright © 2010 Canadian Research & Development Centre of Sciences and Cultures
Address: 730, 77e AV, Laval, Quebec, H7V 4A8, Canada

Telephone: 1-514-558 6138
Http://www.cscanada.net
Http://www.cscanada.org
E-mail:office@cscanada.net  office@cscanada.org