An experimental study of single-phase and two-phase flow pressure drop in annular helicoidal pipes Article
Xin, RC, Awwad, A, Dong, ZF et al. (1997). An experimental study of single-phase and two-phase flow pressure drop in annular helicoidal pipes
. INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 18(5), 10.1016/S0142-727X(97)00033-7