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  _____     ______    ______     ___      ______  
 |__  //   /_   _//  /_   _//   / _ \\   /_   _// 
   / //     -| ||-     | ||    | / \ ||  `-| |,-  
  / //__    _| ||_    _| ||    | \_/ ||    | ||   
 /_____||  /_____//  /__//      \___//     |_||   
 `-----`   `-----`   `--`       `---`      `-`'

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Text this: Wave-current interaction with a vertical square cylinder