arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0903.4294math-phmath.MPnlin.CD
收藏

复杂流体的几何结构

The Geometric Structure of Complex Fluids

François Gay-Balmaz, Tudor S. Ratiu

摘要:

本文发展了仿射Euler-Poincaré和仿射Lie-Poisson约化理论,并将这些过程应用于各种复杂流体的例子,包括流体和超流体的Yang-Mills和Hall磁流体力学,自旋玻璃,微流体和液晶。作为一个后果的拉格朗日方法,变分制定的方程确定。在哈密顿量方面,相关的泊松括号通过减少一个典型的余切丛。一个开尔文-诺特循环定理,并适用于这些例子。

英文摘要:

This paper develops the theory of affine Euler-Poincaré and affine Lie-Poisson reductions and applies these processes to various examples of complex fluids, including Yang-Mills and Hall magnetohydrodynamics for fluids and superfluids, spin glasses, microfluids, and liquid crystals. As a consequence of the Lagrangian approach, the variational formulation of the equations is determined. On the Hamiltonian side, the associated Poisson brackets are obtained by reduction of a canonical cotangent bundle. A Kelvin-Noether circulation theorem is presented and is applied to these examples.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑