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arXiv 1306.3761math.APmath-phmath.MP
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二维不可压Euler方程的穿孔区域渗透率

Permeability through a perforated domain for the incompressible 2D Euler equations

Virginie Bonnaillie-Noël, Christophe Lacave, Nader Masmoudi

摘要:

我们研究了穿孔区域对二维欧拉方程的影响。尺寸为$\varepsilon$的小包裹体均匀分布在单元段或矩形上,流体充满外部。这些夹杂物至少分开一个距离$\varepsilon^α$,我们证明,$α$足够小(即,小于2的情况下的段,小于1的情况下的平方),理想流体的极限行为不觉得穿孔域的效果在领先的顺序时,$\varepsilon\to 0$。

英文摘要:

We investigate the influence of a perforated domain on the 2D Euler equations. Small inclusions of size $\varepsilon$ are uniformly distributed on the unit segment or a rectangle, and the fluid fills the exterior. These inclusions are at least separated by a distance $\varepsilon^α$ and we prove that for $α$ small enough (namely, less than 2 in the case of the segment, and less than 1 in the case of the square), the limit behavior of the ideal fluid does not feel the effect of the perforated domain at leading order when $\varepsilon\to 0$.

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