Poisson brackets in Hydrodynamics

Abstract

This paper investigates different Poisson structures that have been proposed to give a Hamiltonian formulation to evolution equations issued from fluid mechanics. Our aim is to explore the main brackets which have been proposed and to discuss the difficulties which arise when one tries to give a rigorous meaning to these brackets. Our main interest is in the definition of a valid and usable bracket to study rotational fluid flows with a free boundary. We discuss some results which have emerged in the literature to solve some of the difficulties that arise. It appears to the author that the main problems are still open.

References in corpus (2)

• Lie Groups and mechanics: an introduction
• Variational Principles for Water Waves

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• Existence and uniqueness of global weak solutions to a generalized Camassa-Holm equation