讲座主题：Numerical approximation of the nonlocal multi-component Phase-field model

专家姓名：翟术英

工作单位：华侨大学

讲座时间：2026年11月12日 09:10-10:10

讲座地点：腾讯会议：154-822-176

主办单位：烟台大学数学与信息科学学院

内容摘要：

We consider a nonlocal ternary viscous Cahn-Hilliard (tVCH) model, which incorporates a finite range of spatial nonlocal interactions that are essential for capturing sharp interfaces among bulk phases and for the accurate calculation of contact angles. The model is to encapsulate the nonlocal versions of three popular phase separation models: the ternary Cahn-Hilliard model, the constrained ternary Allen-Cahn model, and the ternary modified Cahn-Hilliard model. However, there are very few works providing a comparative study on dynamical behaviors of these three models. With the combination of splitting method and SDC method, we present a high-order explicit hybrid algorithm for solving the nonlocal tVCH model. Results indicate that the nonlocal tVCH model is more suitable than the local and fractional-order versions for accurately calculating the contact angles among three phases.

主讲人介绍：

翟术英，华侨大学教授，省高校重点实验室主任，主持国家级项目3项和省部级项目6项，在国际著名SCI期刊 SIAM J. Sci. Comput.、Comput. Methods Appl. Mech. Engrg.、J. Comput. Phys. 等上发表研究论文50余篇，其中SCI高被引论文5篇，热点论文1篇。入选福建省高校青年教学能手、福建省高层次人才、福建省高校杰出青年科研人才培育计划，获得福建省高校青年教师教学竞赛一等奖、福建省高等教育教学成果奖二等奖、福建省教学创新大赛二等奖、福建省科技进步奖三等奖。