题目: Oldryod-B粘弹性流的能量耗散的特征线格式 Energy Dissipative Characteristic Scheme for the Diffusive Oldroyd-B Viscoelastic Fluid

报告人:佘邦伟博士（捷克科学院数学研究所）

地点:致远楼102室

时间:2016年9月23日 16:00-17:00

Abstract：

We propose new energy dissipative characteristic numerical methods for the approximation of the diffusive Oldroyd-B equations, that are based either on the finite element or finite difference discretization. We prove energy stability of both schemes and illustrate their behaviour on a series of numerical experiments. Using both the diffusive model and the logarithmic transformation of the elastic stress we are able to obtain methods that converge as mesh parameter is refined.This work has been done in the cooperation with M. Tabata, H. Notsu (Waseda University, Tokyo) and supported by the DFG International Reseach Training Group “Mathematical Fluid Dynamics”.

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