學術演講 主講者: Prof. Volker Elling (University of Michigan) 講題: Self-similar vortex spiral solutions of the 2d incompressible Euler equations 時間: 2014-10-16 (Thu.)  14:30 - 15:30 地點: 數學所 演講廳(6F) (台大院區) Abstract: Vortex spirals are ubiquitous in fluid flow, for example as turbulent eddies or as trailing vortices at aircraft wings. We consider solutions of the 2d incompressible Euler equations that have vorticity stratifying into algebraic spirals. The solutions are selfsimilar: velocity $v(t,x)=t^{m-1}v^(t^{-m}x)$, for similarity exponent \$\frac12 || Close window ||