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

Jingning He

Published 2023-01-16Version 1

We analyze the long-time behavior of solutions to a Navier-Stokes-Cahn--Hilliard-Oono system with chemotaxis effects and physically relevant singular potential. This model also includes some significant mechanisms such as active transport and chemotaxis effects. The system couples the Navier-Stokes equations for the fluid velocity, a convective Cahn-Hilliard equation for the phase-field variable and a diffusion equation for the nutrient density. For the initial boundary value problem in a smooth bounded domain $\Omega\subset \mathbb{R}^2$, we prove the 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.