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arXiv 2301.06258math.AP
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二维中带趋化性和奇异势的Navier-Stokes-Cahn-Hilliard系统的吸引子

Attractors for the Navier-Stokes-Cahn-Hilliard System with Chemotaxis and Singular Potential in 2D

Jingning He

AI总结:

本文研究二维带趋化性和奇异势的Navier-Stokes-Cahn-Hilliard系统,证明全局吸引子和指数吸引子的存在性,并推出全局吸引子具有有限分形维数。

摘要:

我们分析了一个带有趋化效应和依赖解的质量源项的Navier-Stokes-Cahn-Hilliard系统解的长时间行为。流体速度满足Navier-Stokes系统,相场变量满足带奇异势(例如Flory-Huggins型)的对流Cahn-Hilliard方程,营养物密度满足一个平流-扩散-反应方程。对于二维中的初边值问题,我们在适当的相空间中证明了全局吸引子的存在性。此外,我们得到了指数吸引子的存在性,由此可以推出全局吸引子具有有限分形维数。

英文摘要:

We analyze the long-time behavior of solutions to a Navier-Stokes-Cahn-Hilliard system with chemotaxis effects and a solution-dependent mass source term. The fluid velocity satisfies the Navier-Stokes system, the phase field variable satisfies a convective Cahn-Hilliard equation with a singular potential (e.g., the Flory-Huggins type), the nutrient density satisfies an advection-diffusion-reaction. For the initial boundary value problem in 2D, we prove the existence of the global attractor in a suitable phase space. Furthermore, we obtain the existence of an exponential attractor, and it can be implied that the global attractor is of finite fractal dimension.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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