Viscous fingering in liquid crystals: Anisotropy and morphological transitions

Details Viscous fingering in liquid crystals: Anisotropy and morphological transitions Viscous fingering in liquid crystals: Anisotropy and morphological transitions

1999-12-16

arxiv.org/abs/cond-mat/9912312v1

Phys. Rev. E 61, 6632 (2000).

Physics

Condensed Matter

Soft Condensed Matter

12 pages, 3 figures. Submitted to PRE

Scientific paper

10.1103/PhysRevE.61.6632

We show that a minimal model for viscous fingering with a nematic liquid crystal in which anisotropy is considered to enter through two different viscosities in two perpendicular directions can be mapped to a two-fold anisotropy in the surface tension. We numerically integrate the dynamics of the resulting problem with the phase-field approach to find and characterize a transition between tip-splitting and side-branching as a function of both anisotropy and dimensionless surface tension. This anisotropy dependence could explain the experimentally observed (reentrant) transition as temperature and applied pressure are varied. Our observations are also consistent with previous experimental evidence in viscous fingering within an etched cell and simulations of solidification.

Affiliated with

Also associated with

No associations

Rating

Viscous fingering in liquid crystals: Anisotropy and morphological transitions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Viscous fingering in liquid crystals: Anisotropy and morphological transitions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Viscous fingering in liquid crystals: Anisotropy and morphological transitions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-244631