报告题目:Lipschitz Continuous Subsonic-sonic Flows in General Nozzles
主 讲 人:王春朋(教授)
时 间:2020年9月 29日9:00 - 10:00
平 台: 腾讯会议
会 议 号:546 182 813
密 码:0929
报告摘要:This talk concerns subsonic-sonic potential flows in two dimensional nozzles. For a symmetric nozzle which is suitably flat near the throat (where the cross section is smallest), it is shown that there is a unique subsonic-sonic flow whose acceleration is bounded. Moreover, its sonic points must occur at the wall or the throat. More precisely, there exists a critical value such that the flow is sonic on the whole throat if the height of the nozzle is not greater than this critical value, while the sonic points of the flow must be located at the wall if the height is greater than this value.
主讲人简介:王春朋,吉林大学数学学院教授、博士生导师,国家杰出青年基金、优秀青年基金获得者,教育部新世纪优秀人才支持计划人选,吉林省长白山学者特聘教授,全国百篇优博获得者,现任吉林大学数学学院院长助理兼吉林大学数学研究所副所长。多次应邀到香港城市大学、香港中文大学和意大利ICTP研究中心做学术访问。主要从事退化抛物方程和椭圆-双曲混合型偏微分方程方面的研究,在国际重要期刊Arch. Ration. Mech. Anal.、SIAM J. Math. Anal.、Comm. Partial Differential Equations、J. Differential Equations等杂志上发表SCI论文40余篇。相关成果获得教育部自然科学奖二等奖,吉林省科学技术奖二等奖等。
重庆三峡学院数学与统计学院
重庆三峡学院三峡大数据学院
2020年9月24日