报告题目:Dynamically regularized Lagrange multiplier method for incompressible flow and related models
报 告 人:蓝日辉 副教授
工作单位:中国海洋大学
报告时间:2026-04-10 16:30–18:30
报告地点:数信学院3412报告厅
报告摘要:
For incompressible Navier-Stokes (NS) equation and Cahn-Hilliard-NS two phase flow, we propose the dynamically regularized Lagrange multiplier methods (DRLM). Via the Lagrange multiplier, we incorporate the energy evolution process into the original system. The corresponding first- and second-order DRLMs are unconditionally energy stable when the nonlinear terms are treated explicitly. In addition, we introduce a dynamically regularized term, i.e., the stabilized first-order time derivative on the square of the Lagrange multiplier, so that the resulting numerical schemes allow for a larger time step. Lastly, we provide the temporal semi- and fully-discretization error estimates on the first-order DRLM scheme.
报告人简介:
蓝日辉,中国海洋大学副教授。2020年博士毕业于美国内华达大学拉斯维加斯分校,导师为孙澎涛教授。2020年至2022年在美国南卡罗来纳大学开展博士后研究,导师为鞠立力教授。2023年1月入职中国海洋大学。主要研究领域为偏微分方程数值解。在《Mathematics of Computation》,《IMA Journal of Numerical Analysis》,《Journal of Computational Physics》,《Computer Methods in Applied Mechanics and Engineering》以及《Journal of Scientific Computing》等杂志发表论文26篇,主持国家自然科学基金青年项目,山东省优秀青年科学基金项目(海外),和山东省青年创新团队。