报告题目：MULTISCALE MODELING OF HEAT TRANSFER IN LOW-DIMENSIONAL MATERIALS

报告人：董源，美国密苏里大学机械与航空工程系——研究科学家

报告时间：2019年1月11日 9:00

报告地点：六教中楼205教室

报告人简介： 

 董源，本科与博士均毕业于清华大学航天航空学院，师从过增元院士。曾赴美国麻省理工学院访学，师从陈刚院士。2014 年至今在美国密苏里大学机械与航空工程系担任研究科学家。主要从事新概念热学-热质理论、传热传质学、纳米材料、多尺度模拟等研究工作。目前以第一作者、通讯作者已发表 SCI 论文 17 篇，其中 JCR 一区论文12 篇，影响因子最高 13.183。基于 Google Scholar 检索的引用数 336。他的博士论文被评为清华大学优秀博士论文一等奖，并入选国际知名学术出版社 Springer 的Springer Theses--Recognizing Outstanding Ph.D. Research 丛书作为专著出版。此外，他的工作还先后获得由中国工程热物理学会颁发的“吴仲华优秀学生奖”以及中国工程热物理学会传热传质学术会议青年优秀论文一等奖等荣誉。

报告摘要ABSTRACT：

The heat transfer in low-dimensional materials is very important and intriguing phenomena containing the following non-trivial effects: The strong boundary scattering induced thermal conductivity reduction and the low-dimensional effect induced thermal conductivity enhancement. Understanding the underlying mechanism and building reliable models for such heat transfer are critical for the applications in advanced chip cooling, high efficient thermal electrics as well as other energy related nanomaterials. Here we present our work in recent years which targeted on the multiscale modelling of nanoscale heat transfer. The first principles calculation is on the electron scale. The molecular dynamics simulation is on the atomic and molecular scale. The phonon gas model based on the thermomass theory is on the mesoscopic scale. Bridge these scales we have developed a series of fundamental understanding and engineering applicable models, which enhance our capability to harness the energy flow in nanoscale.