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arXiv 2301.01073math.AP
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Stokes流最佳剖面的自由间断方法

A free discontinuity approach to optimal profiles in Stokes flows

Dorin Bucur, Antonin Chambolle, Alessandro Giacomini, Mickaël Nahon

摘要:

本文研究了具有Navier边界条件的Stokes流中的障碍物。我们证明了阻力最小的障碍物的存在性和规律性,在所有形状的规定的体积和控制表面积,考虑到这些形状可能会自然发展的几何特征的余维1。的存在性进行的框架内的自由不连续性问题,并导致一个放松的解决方案,在空间中的特殊函数的有界变形(SBD)。在2维空间中,我们证明了该解是经典的。

英文摘要:

In this paper we study obstacles immerged in a Stokes flow with Navier boundary conditions. We prove the existence and regularity of an obstacle with minimal drag, among all shapes of prescribed volume and controlled surface area, taking into account that these shapes may naturally develop geometric features of codimension 1. The existence is carried out in the framework of free discontinuity problems and leads to a relaxed solution in the space of special functions of bounded deformation (SBD). In dimension 2, we prove that the solution is classical.

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