报告主题：关于两相流系统中守恒型Allen-Cahn模子的一种快速有用的自顺应窄区域要领 (A fast and practical adaptive narrow domain method for the conservative Allen–Cahn model in two-phase flow system)

报 告 人：杨钧翔 博士（高丽大学）

报告时间：2021年10月14日（周四） 19:00-22：00

参会方法：腾讯聚会

聚会ID：315 117 854

约请人：潘晓敏

主理部分：理学院数学系

报告摘要：We present a simple and practical adaptive finite difference method for the conservative Allen-Cahn-Navier-Stokes system. For the conservative Allen-Cahn equation, we use a temporally adaptive narrow band domain embedded in the uniform discrete rectangular domain. The narrow band domain is defined

as a neighboring region of the interface. The Navier-Stokes equation is solved in a fully discrete domain with the coarse grid than that for the CAC equation. Various benchmark numerical experiments, such as the pressure jump, droplet deformation in shear flow, falling droplet, and rising bubble, are performed to show that the proposed method is efficient and practical for the simulations of two-phase incompressible flow.