發送短信 : Vortex detection for fluid dynamics data

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