报告题目：Steady Collision of Two Jets Issuing from Two

报告简介：In this talk, we will discuss the mathematical theory on collision of two incompressible jets emerging from two axially symmetric nozzles. This work is motivated by the famous survey in 1989 by A. Friedman. More precisely, we showed that for any given mass fluxes $M_1>0$ and $M_2<0$ in two nozzles respectively, that there exists an incompressible, inviscid impinging outgoing jet with contact discontinuity. Furthermore, we showed that there is no stagnation point in the flow field and its closure, except one point on the symmetric axis. Some asymptotic behavior of the impinging jet in upstream and downstream and geometric properties of the free stream surfaces are also obtained. This is a joint work with Lili Du (SCU).

报告人：王永富，2017年博士毕业于四川大学，现为西南财经大学副教授、博士生导师。研究方向是非线性偏微分方程理论与应用，主要研究兴趣为高维Navier-Stokes方程组强解的适定性和理想流体的自由边界问题。在Arch.RationalMech.Anal.、Calc.Var.PDEs、SIAM.Math.Anal.、Ann. Inst. H. Poincaré Anal. Non Linéaire、J.Differential Equations、J.Lond.Math.Soc.等国际著名学术刊物发表学术论文20余篇。2020年获得四川省数学会首届(2020年度)基础数学奖（二等奖），目前主持国家自然科学基金面上项目1项。

报告时间：2022年3月11日（星期五）上午 10:30-11:00

报告地点：腾讯会议，ID：345-458-250

主办单位：扬州大学数学科学学院

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