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

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發送短信 : Mixing and heat transfer enhancement in microchannels containing converging-diverging passages