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

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Text this: Time-mean structure of secondary flows in open channel with longitudinal bedforms