Fig. 5
![Fig. 5](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40064-016-3717-9/MediaObjects/40064_2016_3717_Fig5_HTML.gif)
Calculated results of two-phase frictional multiplier term Φ 2 varying with vapor quality × with our theoretical model are compared with the experimental data, the modified Martinelli–Nelson equation and the homogenous model (Rane et al. 2011) (Courtesy Cryogenics 2011)