Influence of tube shape on falling water film thickness and Nusselt number outside horizontal tube
LUO Lincong, PAN Jihong, TIAN Maocheng, HUANG Tao, REN Yucheng
CIESC Journal . 2013, (8): 2760 -2768 .  DOI: 10.3969/j.issn.0438-1157.2013.08.008