Difference in pressure drop results
 

Hi to all I try to predict pressure drop for stratified two phase (oil-water) flow into a pipe I used the VOF model with Geo-reconstruct scheme to estimate the data and compare it with another paper in the same field of study. The results being in good agreement for the velocity profile to most water cut values but there were a large difference for the values of pressure drop can anyone tell me why? Knowing I use 2 D geometry?

Thanks to all