“Effect of Using Combined Square Nozzle & Winglet With Helical Tape on Thermal Characteristics in Tube Heat Exchanger”. Al-Khwarizmi Engineering Journal 14, no. 4 (November 28, 2018): 64–71. Accessed May 2, 2024. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/59.