?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.ijheatmasstransfer.2021.120918&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=K.L.&rft.aulast=Liaw&rft.au=Liaw%2C+K.L.&rft.date=2021&rft.title=International+Journal+of+Heat+and+Mass+Transfer&rft.atitle=Turbulent+convective+heat+transfer+in+helical+tube+with+twisted+tape+insert&rft.volume=169&rft.issn=00179310&rft.genre=article