[Astik Kulkarni]

I am trying to replicate the results obtained in the attached CFD Simulation journal article.
Following is the information from a journal article I could infer and specify in fluent software.
Gas: N2 (density 23.4, viscosity 1.77e-5)
Liquid: Naptha (density 702.3, viscosity 3.59e-4)
(The two materials are not natively available in the fluent database and hence I used the existing materials to change the values. I hope density and viscosity are the only two values fluent uses.)
surface tension 0.0185N/m
Dia of pipe 189mm. L/D = 30
Liquid/gas superficial velocity= 0.05/0.1 m/s
Model type : Eularian Eularian Multiphase VOF with 2 phases
There are two separate inlets for liquid and gas.


I have kept everything constant/default. I was wondering What I did wrong as I could not replicate the results from the paper. which have bubbly flow?

The file can be found at link
https://www.onepetro.org/conference-paper/OTC-24245-MS

Any help would be appreciated

edit: attached the results image from journal article.