Text this: Vortex shedding behind an inclined flat plate hinged with a trailing-edge flap

  _____    _    _    ______    _    _    __   _   
 /  ___|| | || | || |      \\ | || | || | || | || 
| // __   | || | || |  --  // | || | || | '--' || 
| \\_\ || | \\_/ || |  --  \\ | \\_/ || | .--. || 
 \____//   \____//  |______//  \____//  |_|| |_|| 
  `---`     `---`   `------`    `---`   `-`  `-`