Global-in-time Hölder continuity of the velocity gradients for fluids with shear-dependent viscosities

Global-in-time Hölder continuity of the velocity gradients for fluids with shear-dependent viscosities
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具有剪切相关粘度的流体速度梯度的全局时间 Hölder 连续性

DOI:
10.1007/s00030-002-8123-z
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
J. Stará
J. Stará
中科院分区:
--
文献类型:
--
作者:
P. Kaplický;J. Málek;J. Stará

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对于一个演化的非线性流体模型,其特征在于粘度是对称速度梯度模的减函数,我们建立了具有Hölder连续速度梯度的解的整体存在性。这样的解在弱解类中是唯一的。我们处理二维空间周期问题。
For an evolutionary nonlinear fluid model characterized by the viscosity being a decreasing function of the modulus of the symmetric velocity gradient we establish the global-in-time existence of the solution with the Hölder continuous velocity gradients. Such a solution is unique in the class of weak solutions. We deal with the two dimensional space periodic problem.