题目:  Porous Media Involved Turbulent Flows

时间：2019年5月20日 9:30-10:30

地点：机械与动力工程学院 F210会议室

邀请人：杨光 博士（制冷与低温工程研究所）

报告人简介：

初旭，2008年本科毕业于同济大学，在德国斯图加特大学先后获得硕士和博士学位 (2016),  
同年获任航空航天热物理学院 (ITLR) 课题组组长 (Data-driven Simulaiton Science)。初旭博士的研究方向包括超临界流体，湍流与转捩以及多相流。他使用基于大规模并行求解器 (Spectral, DG, CLSVOF) 的直接数值模拟 (DNS) 来求解全部流场信息。近年来他主持三项德国tier1超算项目，获得累计一亿核时超算资源。初旭博士曾获国家优秀自费留学生奖，近三年发表论文二十余篇。

报告摘要：

Transitional and turbulent flow in porous media are, in general, less understood compared to laminar and Darcy flows. The seminar aims to present recent results of turbulent and transitional flows in porous media. In the first part, a DNS-based microscopic analysis of turbulent flow in porous media will be presented with an aim to link the macroscopic statistics and qualitative observations with microscopic pore-scale signatures of the same. In the second part, the instability and transition in porous media are introduced with DNS and linear stability analysis, which reveal the transitional process in porous media for the first time. Miscellaneous works such as supercritical fluids and multiphase flows will also be briefly presented as well.