L. C. Berselli and M. Gubinelli
We consider a wide class of approximate models of evolution of singular distributions of vorticity in three dimensional incompressible fluids and we show that they have global smooth solutions. The proof exploits the existence of suitable Hamiltonian functions. The approximate models we analyze (essentially discrete and continuous vortex filaments and vortex loops) are related to some problem of classical physics concerning turbulence and also to the numerical approximation of flows with very high Reynolds number. Finally, we interpret our results as a basis to theoretical validation of numerical methods used in state-of-the-art computations of turbulent flows.
L. C. Berselli and M. Gubinelli. On the global evolution of vortex filaments, blobs, and small loops in 3D ideal flows. Papers of Massimiliano Gubinelli, 2005, version 1. https://mgubi.org/papers/paper/vortex-filaments-blobs-loops/
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Papers of Massimiliano Gubinelli: an OpenSheaf archive (format 0.1, a draft); this page is generated by opensheaf-py from the archive.