Speaker: Dr. Fukeng Huang (黄富铿博士)

Time: 11:00-12:00, 31 May 2023 (Wednesday) (Beijing time)

Venue: A103,Lijiao Building, BNU

Tencent Meeting ID:787-301-804

Abstract

In this talk, I will talk about some essential improvements on the original scalar auxiliary variable(SAV) approach. The Generalized SAV approach(GSAV) enjoys the following remarkable properties: 1. The computational cost is half of the original SAV approach. 2. It can be used to construct high-order unconditionally stable schemes with rigorous error analysis. 3. The new approach is not limited to the gradient flow systems, it can be applied to general dissipative systems.

We combine this GSAV approach with a new consistent splitting scheme for the Navier-Stokes equations, and obtain, for the first time, a strongly unconditional stable, decoupled schemes with uniform second-order accuracy for the velocity and pressure.

About Dr. Huang

黄富铿，2016年6月本科毕业于中山大学，2021年5月博士毕业于美国普渡大学，师从沈捷教授。现在在新加坡国立大学从事博士后研究工作，主要研究方向包括：对一般耗散系统构造高阶无条件稳定格式并作出严格的误差分析，相场模型在物理问题中的应用和计算。