Circulation and energy theorem preserving stochastic fluids
File(s)stoch_fluids_revised_online.pdf (672.75 KB)
Accepted version
Author(s)
Drivas, Theodore D
Holm, Darryl
Type
Journal Article
Abstract
Smooth solutions of the incompressible Euler equations are characterized by the property that circulation around material loops is conserved. This is the Kelvin theorem [1]. Likewise, smooth solutions of Navier-Stokes are characterized by a generalized Kelvin’s theorem, introduced by Constantin–Iyer (2008) [3]. In this note, we introduce a class of stochastic fluid equations, whose smooth solutions are characterized by natural extensions of the Kelvin theorems of their deterministic counterparts, which hold along certain noisy flows. These equations are called the stochastic Euler–Poincare´ and stochastic Navier-Stokes–Poincare´ equations respectively. The stochastic Euler–Poincare equations were previously derived from a stochastic ´ variational principle by Holm (2015) [20], which we briefly review. Solutions of these equations do not obey pathwise energy conservation/dissipation in general. In contrast, we also discuss a class of stochastic fluid models, solutions of which possess energy theorems but do not, in general, preserve circulation theorems.
Date Issued
2020-12
Date Acceptance
2019-06-18
Citation
Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 2020, 150 (6), pp.2776-2814
ISSN
0308-2105
Publisher
Cambridge University Press (CUP)
Start Page
2776
End Page
2814
Journal / Book Title
Proceedings of the Royal Society of Edinburgh: Section A Mathematics
Volume
150
Issue
6
Copyright Statement
© 2019 The Royal Society of Edinburgh. This article has been published in a revised form in [Journal] https://doi.org/10.1017/prm.2019.43]. This version is free to view and download for private research and study only. Not for re-distribution, re-sale or use in derivative works.
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Identifier
https://www.cambridge.org/core/journals/proceedings-of-the-royal-society-of-edinburgh-section-a-mathematics/article/circulation-and-energy-theorem-preserving-stochastic-fluids/D57B9AD1BBA6407162EE4F058A54175B
Grant Number
EP/N023781/1
Subjects
math.AP
math.AP
math-ph
math.MP
physics.flu-dyn
0101 Pure Mathematics
0102 Applied Mathematics
Publication Status
Published
Date Publish Online
2019-07-23