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Vapor-liquid coexistence of the Stockmayer fluid in nonuniform external fields

Sela Samin and Yoav Tsori*

Christian Holm

  • Department of Chemical Engineering and The Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel

  • Institut für Computerphysik, Universität Stuttgart, Allmandring 3, D-70569 Stuttgart,Germany

  • *tsori@bgu.ac.il
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Phys. Rev. E 87, 052128 – Published 22 May, 2013

DOI: https://doi.org/10.1103/PhysRevE.87.052128

Abstract

We investigate the structure and phase behavior of the Stockmayer fluid in the presence of nonuniform electric fields using molecular simulation. We find that an initially homogeneous vapor phase undergoes a local phase separation in a nonuniform field due to the combined effect of the field gradient and the fluid vapor-liquid equilibrium. This results in a high-density fluid condensing in the strong field region. The system polarization exhibits a strong field dependence due to the fluid condensation.

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Phys. Rev. E 87, 052128– Published 22 May, 2013
  • Received 28 February 2013

©2013 American Physical Society

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