聚合物在多孔介质中流动的过滤定律
Filtration Law for Polymer Flow through porous media
AI总结:
本文研究聚合物在多孔介质中的过滤定律,采用幂律和Carreau定律的拟牛顿模型,通过均匀化方法得到耦合微观-宏观定律并解耦,写成非线性Darcy定律形式,证明了适定性并给出解析与数值研究。
摘要:
本文研究了聚合物在多孔介质中的过滤定律。我们采用拟牛顿模型,其粘度依赖于剪切速率,并遵循幂律和Carreau定律。利用均匀化方法,我们找到了控制周期多孔介质模型中拟牛顿流动的耦合微观-宏观均匀化定律。我们将该定律解耦,将微观尺度与宏观尺度分离。我们将宏观过滤定律写成非线性Darcy定律的形式,并证明了所得定律是适定的。我们给出了模型的解析研究和数值研究。
英文摘要:
In this paper we study the filtration laws for the polymeric flow in a porous medium. We use the quasi-Newtonian models with share dependent viscosity obeying the power-law and the Carreau's law. Using the method of homogenization the coupled micro-macro homogenized law, governing the quasi-newtonian flow in a periodic model of a porous medium, was found. We decouple that law separating the micro from the macro scale. We write the macroscopic filtration law in the form of non-linear Darcy's law and we prove that the obtained law is well posed. We give the analytical as well as the numerical study of our model.
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