Hydrodynamics of Liquids of Chiral Molecules and Suspensions Containing Chiral Particles

Physics Department, University of Washington, Seattle, Washington 98195, USA.
Physical Review Letters (Impact Factor: 7.73). 05/2010; 104(19):198301. DOI: 10.1103/PhysRevLett.104.198301
Source: PubMed

ABSTRACT We obtain hydrodynamic equations describing a fluid consisting of chiral molecules or a suspension of chiral particles in a Newtonian fluid. The hydrodynamic velocity and stresses arising in a flowing chiral liquid have components that are forbidden by symmetry in a Newtonian liquid. For example, a chiral liquid in a Poiseuille flow between parallel plates exerts forces on the plates, which are perpendicular to the flow. A generic flow results in spatial separation of particles of different chirality. Thus even a racemic suspension will exhibit chiral properties in a generic flow. A suspension of particles of random shape in a Newtonian liquid is described by equations which are similar to those describing a racemic mixture of chiral particles in a liquid.

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