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arXiv 1601.06178math.AP
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修正的三维各向异性Navier-斯托克斯方程整体解的存在唯一性

Existence and uniqueness of global solutions for the modified anisotropic 3D Navier-Stokes equations

Hakima Bessaih, Saber Trabelsi, Hamdi Zorgati

摘要:

研究了一个修正的三维不可压各向异性Navier-斯托克斯方程。修改包括在增加了一个功率项的非线性对流。当流体服从Darcy-Forchheimer定律而不是经典的Darcy定律时,这种修改自然地出现在多孔介质中。在不假设初始值为小的条件下,证明了解的整体存在唯一性。这改进了经典的三维不可压各向异性Navier-斯托克斯方程的结果。

英文摘要:

We study a modified three-dimensional incompressible anisotropic Navier-Stokes equations. The modification consists in the addition of a power term to the nonlinear convective one. This modification appears naturally in porous media when a fluid obeys the Darcy-Forchheimer law instead of the classical Darcy law. We prove global in time existence and uniqueness of solutions without assuming the smallness condition on the initial data. This improves the result obtained for the classical 3D incompressible anisotropic Navier-Stokes equations.

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