TY - JOUR T1 - A First-Order, Semi-Implicit, and Unconditionally Energy-Stable Scheme for an Incompressible Ferrohydrodynamics Flow AU - Dong , Xiaojing AU - Huang , Huayi AU - Huang , Yunqing JO - Journal of Computational Mathematics VL - 4 SP - 866 EP - 897 PY - 2025 DA - 2025/07 SN - 43 DO - http://doi.org/10.4208/jcm.2402-m2023-0181 UR - https://global-sci.org/intro/article_detail/jcm/24264.html KW - Unconditionally energy-stable scheme, Ferrohydrodynamics, Magnetic fluid, Prior estimates, Error analysis. AB -

In this paper, we propose and analyze a first-order, semi-implicit, and unconditionally energy-stable scheme for an incompressible ferrohydrodynamics flow. We consider the constitutive equation describing the behavior of magnetic fluid provided by Shliomis, which consists of the Navier-Stokes equation, the magnetization equation, and the magnetostatics equation. By using an existing regularization method, we derive some prior estimates for the solutions. We then bring up a rigorous error analysis of the temporal semi-discretization scheme based on these prior estimates. Through a series of experiments, we verify the convergence and energy stability of the proposed scheme and simulate the behavior of ferrohydrodynamics flow in the background of practical applications.