Zobrazeno 1 - 10
of 252
pro vyhledávání: '"Galdi, Giovanni P."'
A rigid body $\mathcal{B}$ moves in an otherwise quiescent viscous liquid filling the whole space outside $\mathcal{B}$, under the action of a time-periodic force $\boldsymbol{\mathsf{f}}$ of period $T$ applied to a given point of $\mathcal{B}$ and o
Externí odkaz:
http://arxiv.org/abs/2410.07448
Publikováno v:
Comptes Rendus. Mathématique, Vol 358, Iss 8, Pp 887-896 (2020)
Fluid flows around an obstacle generate vortices which, in turn, generate lift forces on the obstacle. Therefore, even in a perfectly symmetric framework equilibrium positions may be asymmetric. We show that this is not the case for a Poiseuille flow
Externí odkaz:
https://doaj.org/article/b187c09f36b94dc1b8a0efa7222abca9
We furnish necessary and sufficient conditions for the occurrence of a Hopf bifurcation in a particularly significant fluid-structure problem, where a Navier-Stokes liquid interacts with a rigid body that is subject to an undamped elastic restoring f
Externí odkaz:
http://arxiv.org/abs/2406.04198
We study certain significant properties of the equilibrium configurations of a rigid body subject to an undamped elastic restoring force, in the stream of a viscous liquid in an unbounded 3D domain. The motion of the coupled system is driven by a uni
Externí odkaz:
http://arxiv.org/abs/2406.04162
Autor:
Galdi, Giovanni P., Yamamoto, Tatsuki
We study the nonhomogeneous boundary value problem for the steady-state Navier-Stokes equations under the slip boundary conditions in two-dimensional multiply-connected bounded domains. Employing the approach of Korobkov-Pileckas-Russo (Ann. Math. 18
Externí odkaz:
http://arxiv.org/abs/2403.00164
Autor:
Galdi, Giovanni P., Maremonti, Paolo
We give sufficient conditions on the initial data for the decay in time of the kinetic energy, $E$, of solutions to the system of equations describing the motion of a rigid body in a Navier-Stokes liquid. More precisely, assuming the initial data ``s
Externí odkaz:
http://arxiv.org/abs/2402.07780
Autor:
Bonheure, Denis, Galdi, Giovanni P.
We prove existence of time-periodic weak solutions to the coupled liquid-structure problem constituted by an incompressible Navier-Stokes fluid interacting with a rigid body of finite size, subject to an {\em undamped} linear restoring force. The flu
Externí odkaz:
http://arxiv.org/abs/2309.06602
Autor:
Galdi, Giovanni P.
Let $\mathcal B$ be a sufficiently smooth rigid body (compact set of $\mathbb R^3$) of arbitrary shape moving in an unbounded Navier-Stokes liquid under the action of prescribed external force, $\textup{F}$, and torque, $\textup{M}$. We show that if
Externí odkaz:
http://arxiv.org/abs/2212.11909
We study the motion of the coupled system, $\mathscr S$, constituted by a physical pendulum, $\mathscr B$, with an interior cavity entirely filled with a viscous, compressible fluid, $\mathscr F$. The presence of the fluid may strongly affect on the
Externí odkaz:
http://arxiv.org/abs/2210.16950
Autor:
Galdi, Giovanni Paolo
We study the motion of a rigid body $\mathscr B$ subject to an undamped elastic restoring force, in the stream of a viscous liquid $\mathscr L$. The motion of the coupled system $\mathscr B$-$\mathscr L\equiv\mathscr S$ is driven by a uniform flow of
Externí odkaz:
http://arxiv.org/abs/2207.02358