欢迎光临!
您现在所在的位置:首页 >> 通知公告 & 学术信息
学术信息
SEMINARS
Subsonic and Sonic Jet Flows
时间  Datetime
2018-06-21 16:00 — 17:00 
地点  Venue
Large Conference Room
报告人  Speaker
Zhouping Xin
单位  Affiliation
The Chinese University of Hong Kong
邀请人  Host
谢春景
报告摘要  Abstract

Subsonic and sonic jet flows are important elements of
hydrodynamics which are typical examples of elliptic 
Free boundary problems and have been studies extensively since 1970's. Yet
there are many outstanding problems to be
solved mathematically. In particular, when the  ambient pressure of the jet
flows are given in advance and/or the ambient 
pressure corresponds to the sonic pressure,  the free boundary problems may
have no variational structures and governing 
equation may become degenerate at the free boundaries. In this talk, I will
present some recent progress to deal with 
these difficulties. The emphasize will be the formulation of the jet
problems, the well-posedness  of the jet problems, 
the regularities of the jet flows, and the geometrical shape  and the
location of the sonic points. This is a joint work with 
Chunpeng Wang.