多彩娱乐城-威尼斯人娱乐骰宝-足球现金网平台出租

Estimates for stress concentration between two adjacent rigid inclusions in stationary Stokes/Navier-Stokes flow

發(fā)布時(shí)間:2024-11-17 點(diǎn)擊次數(shù):

標(biāo)題:Estimates for stress concentration between two adjacent rigid inclusions in stationary Stokes/Navier-Stokes flow

報(bào)告時(shí)間:2024年11月18日(星期)16:00-17:00

報(bào)告地點(diǎn):人民大街校區(qū)數(shù)學(xué)與統(tǒng)計(jì)學(xué)院二樓會(huì)議室

主講人:李海剛

主辦單位:數(shù)學(xué)與統(tǒng)計(jì)學(xué)院

報(bào)告內(nèi)容簡(jiǎn)介:

Particles suspending in complex fluids usually result in complicated flow behavior. It is vitally important to study the stress enhancements in the narrow region between two rigid particles. In this talk, we will show the pointwise upper bounds of the gradient and the second-order partial derivatives for the stationary Stokes/Navier-Stokes flow as the distance between two rigid particles approaches to zero in a bounded domain in dimension two and three. The optimality of these blow-up rates is demonstrated by establishing the corresponding lower bounds.

主講人簡(jiǎn)介:

李海剛,北京師范大學(xué)數(shù)學(xué)科學(xué)學(xué)院教授、博士生導(dǎo)師,國(guó)家級(jí)人才計(jì)劃青年項(xiàng)目入選者。主要從事材料科學(xué)中的偏微分方程理論研究,在復(fù)合材料中的Babus?ka問(wèn)題、流-固耦合懸浮問(wèn)題等方面取得一系列有國(guó)際影響的重要成果。在A(yíng)dv Math、ARMA、JMPA、TAMS、JFA、AIHP-NL、SIMA、SIAP、CV&PDEs、IMAJMA等國(guó)際權(quán)威數(shù)學(xué)雜志發(fā)表論文40余篇,解決了偏微分方程理論與數(shù)值計(jì)算中的若干難題, 獲得教育部自然科學(xué)二等獎(jiǎng)、北京市自然科學(xué)二等獎(jiǎng)(第一完成人)等省部級(jí)獎(jiǎng)勵(lì)。