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Mathematics > Analysis of PDEs

arXiv:1804.05403 (math)
[Submitted on 15 Apr 2018]

Title:A maximal regularity approach to the study of motion of a rigid body with a fluid-filled cavity

Authors:Giusy Mazzone, Jan Pruess, Gieri Simonett
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Abstract:We consider the inertial motion of a rigid body with an interior cavity that is completely filled with a viscous incompressible fluid. The equilibria of the system are characterized and their stability properties are analyzed. It is shown that equilibria associated with the largest moment of inertia are normally stable, while all other equilibria are normally hyperbolic. We show that every Leray-Hopf weak solution converges to an equilibrium at an exponential rate. In addition, we determine the critical spaces for the governing evolution equation, and we demonstrate how parabolic regularization in time-weighted spaces affords great flexibility in establishing regularity of solutions and their convergence to equilibria.
Comments: 23 pages
Subjects: Analysis of PDEs (math.AP)
Cite as: arXiv:1804.05403 [math.AP]
  (or arXiv:1804.05403v1 [math.AP] for this version)
  https://doi.org/10.48550/arXiv.1804.05403
Related DOI: https://doi.org/10.1007/s00021-019-0449-y

Submission history

From: Gieri Simonett [view email]
[v1] Sun, 15 Apr 2018 18:14:09 UTC (26 KB)
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