Text this: Air-cooling enhancement with delta winglet vortex generators in entrance region of in-line array electronic modules

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