2011/04/03 by Adam Larios, Larios, Adam, Edriss S. Titi +1 · 1 citation
Engineering · Mathematics · Physics and Astronomy · #35B44 #76A05 #76B03 #76D03 #Advanced Mathematical Physics Problems #Analysis of PDEs (math.AP) #Computational Fluid Dynamics and Aerodynamics #FOS: Mathematics #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Mathematical Physics (math-ph) #Navier-Stokes equation solutions #Primary: 76W05 #Secondary: 76A10 #math-ph #math.AP #math.MP #msc:35B44 #msc:76A05 #msc:76A10 #msc:76B03 #msc:76D03 #msc:76W05 #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.1104.0358
arxiv created 2011/04/03 · openalex publication_date 2011/04/03 · arxiv updated 2011/04/05 · openalex created_date 2022/09/26 · openalex updated_date 2026/07/28
We prove existence, uniqueness, and higher-order global regularity of strong solutions to a particular Voigt-regularization of the three-dimensional inviscid resistive Magnetohydrodynamic (MHD) equations. Specifically, the coupling of a resistive magnetic field to the Euler-Voigt model is introduced to form an inviscid regularization of the inviscid resistive MHD system. The results hold in both the whole space \nR3 and in the context of periodic boundary conditions. Weak solutions for this regularized model are also considered, and proven to exist globally in time, but the question of uniqueness for weak solutions is still open. Since the main purpose of this line of research is to introduce a reliable and stable inviscid numerical regularization of the underlying model we, in particular, show that the solutions of the Voigt regularized system converge, as the regularization parameter α\maps0, to strong solutions of the original inviscid resistive MHD, on the corresponding time interval of existence of the latter. Moreover, we also establish a new criterion for blow-up of solutions to the original MHD system inspired by this Voigt regularization. This type of regularization, and the corresponding results, are valid for, and can also be applied to, a wide class of hydrodynamic models.