2013 1(12)

Back to table of content

   Short abstract

 

Pages:

270 - 275

Language:

RU

Ref.:

6


Click to get extended abstract


Download paper: [RU]

2013_1(12)_49.pdf

 

 

STUDY OF DIELECTRIC LIQUID STRUCTURE IN HIGH ELECTRIC FIELD WITH MOLECULAR DYNAMICS

Karpov D.I.

Lavrentyev Institute of Hydrodynamics SB RAS, Novosibirsk, Russia


Citation:

Karpov D.I. Study of dielectric liquid structure in high electric field with molecular dynamics / D.I. Karpov // Modern Science: Researches, Ideas, Results, Technologies. - Dnepropetrovsk: SPIC "Triacon". - 2013. - Iss. #1(12). - PP. 270 - 275


Keywords:

phase transitions; hydrodynamic flows; extremally strong electric field; dielectric liquids; ions


Abstracts:

A method of molecular dynamics was realized taking into account the electric forces in dielectric liquids in a strong electric field. A computer program was developed for parallel computing using graphic processor units by NVIDIA Corporation. The program allows accelerating the calculation from 40 to 50 times. The CUDA technology of programming was used. The calculations were performed of an anisotropic spinodal decomposition of a polar dielectric under the action of strong electric field for large ensembles of molecules. The region of influence of an ion in a liquid media on polar molecules of a dielectric was studied at various densities. The distributions of the electric field potential in dielectric media near the ion were calculated at various densities. The depth of the potential well decreases with the density. The results obtained are important for understanding the mechanisms of generation of hydrodynamic flows at electrical breakdown of liquid dielectrics.


References:

  1. Kupershtokh A.L., Medvedev D.A. Anisotropic instability of a dielectric liquid in a strong uniform electric field: Decay into a twophase system of vapor filaments in a liquid // Phys. Rev.E. 2006. Vol. 74, N 2. P. 021505.

  2. Jie Sun, Ya-Ling He, and Wen-Quan Tao (2012). "Molecular dynamics-continuum hybrid simulation for condensation of gas flow in a microchannel", Microfluidics and Nanofluidics; V. 7, no. 3, pp. 407-422.

  3. Karpov D.I., Kupershtokh A.L. (2009) "Anisotropic spinodal decay of polar dielectric in strong electric field: method of molecular dynamics", Technical Physics Letters, V. 35, no. 5, pp. 479-482.

  4. Buck, I., Rangasayee, V., Darve, E., Pande, V., and Hanrahan, P. "Accelerating molecular dynamics with GPUs". Proceedings of ACM Workshop on General Purpose Computing on Graphics Processors, (http://www. cs.unc.edu/Events/Conferences/GP2/proc. pdf)

  5. Anderson, J.A., Lorenz, C.D., and Travesset A. (2008). "General purpose molecular dynamics simulations fully implemented on graphics processing units", Journal of Computational Physics, V. 227, no.10, pp. 5342-5359.

  6. Kupershtokh A.L., Karpov D.I., Medvedev D.A., Stamatelatos C.P., Charalambakos V.P., Pyrgioti E.C., Agoris D.P., Stochastic models of partial discharge activity in solid and liquid dielectrics // IET Science, Measurement and Technology. 2007. V. 1, N 6. P. 303-311.

 

 
     

© SPIC "Kappa", LLC 2009-2016