“…In order to obtain higher accuracy, several authors have utilized ANN to predict important multiphase flow parameters including flow pattern (Ternyik et al, 1995;Osman, 2004;Zhao et al, 2013;Al-Naser et al, 2016;Figueiredo et al, 2016;Hamidi et al, 2018;Hanus et al, 2018), liquid holdup (Ternyik et al, 1995;Shippen and Scott, 2004;Mohammadi, 2006;Azizi et al, 2016a;Zhao et al, 2019), heat transfer (Boostani et al, 2017;Hamidi et al, 2018), gas void fraction (Azizi et al, 2016a;Parrales et al, 2018), pressure gradient (Bar et al, 2010;Azizi and Karimi, 2015) under different flow conditions using varied gas-liquid mixtures and pipe dimensions and geometries. Other researchers have employed this method to determine gas and liquid properties (El-Sebakhy, 2009;Kamyab et al, 2010;Ahmadi et al, 2016;Roshani and Nazemi, 2017;Farzaneh-Gord et al, 2018).…”