イベントカレンダー
- 日程
- 2023年3月30日（木）
- 時間
- 16:00～
- 場所
- Zoomによるハイブリッド形式で開催します。
参加を希望される方は下記の登録フォームで登録をお願いします。
登録フォーム：https://zoom.us/meeting/register/tJMpfuqtqD4pEtME_voWmMjmPyPBu9pcMPwc
Zoom URLは講演開始10分前までに http://www.math.titech.ac.jp/~PDE_seminar/seminar.html にてお知らせします。
- 講師
- Franck Sueur 氏（University of Bordeaux）
- 講演タイトル
- Lagrangian controllability of the incompressible Navier-Stokes equations
- アブストラクト
- The talk will be devoted to the issue of the Lagrangian controllability in incompressible fluid mechanics, which consists in driving, by a remote action, a closed patch of particles of an incompressible fluid, from a given initial place to another given targeted final place. A natural setting is the case where the fluid occupies an open bounded domain, with an impermeability condition on the boundary except on an open non-void subset where an appropriate boundary data can be chosen freely as a boundary control. Another typical requirement in Lagrangian controllability is that the patch particles do no go out of the domain during the process, which forbids a quite undesired total flush, on the opposite to the more classical Eulerian controllability problem, as promoted by J.-L. Lions in the 80’s. We will review some earlier and recent advances in this direction and will advertise an ongoing joint work with Ludovick Gagnon, Toan T. Nguyen and Trinh T. Nguyen, on the case of the 2D incompressible Navier-Stokes equations.
更新日：2023.03.02
