讲座Basic of Rotating Flow Boundary Layers

2025-11-13，NCAR教授Richard Rutunno来学校做了题为《Basic of Rotating Flow Boundary Layers》的讲座，特此记录一下。

Rotating Flow / No Boundary

Cylindrical Ploar Coordinates

$$v(r,z)=V(r);u=w=0$$

$$0=-\frac{\partial p}{\partial r} + \frac{\rho V^2}{r}$$

FILE NOTES for SECONDARY FLOW

Rotating Flow / Frictional Boundary Layer

Battub Vortex

Dye injected at different level (top and bottom)

$V r^{\beta}$

• $\beta = 1$,solid-body

Flow in solid-body rotating

secondary flow

Potential Vortex

Burggraf, Stewartson and Belcher (1971, Phys. Fluids.)

Boundary Layer of Rankine-Type Vortex

Purdue Tornado Vortex Simulator. Church, JAS