Lagrangian stochastic integrals of motion in isotropic random flows
arXiv:2311.05343 · doi:10.1063/5.0189534
Abstract
A set of exact integrals of motion is found for systems driven by homogenous isotropic stochastic flow. The integrals of motion describe the evolution of (hyper-)surfaces of different dimensions transported by the flow, and can be expressed in terms of local surface densities. The expression for the integrals is universal: it represents general geometric properties and does not depend on the statistics of the specific flow.
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