Numerical simulations of cylindrical bubble columns operating in the churn-turbulent regime have been carried out using an Euler–Euler approach incorporated with the RNG k–ε model for liquid turbulence[citation needed].
After the comparison of all the three results it gets very clear that only MUSIG models with some lift force can replicate the measured radial distribution of gas holdup in the fully developed flow regime.
Mutual effects of drag force, mean bubble sizes, and turbulence characteristics profound from the simulation results.
•Montoya, G.; Lucas, D.; Krepper, E.; Hänsch, S.; Baglietto, E. Analysis and Applications of a Generalized Multi-Field Two-Fluid Approach for Treatment of Multi-Scale Interfacial Structures in High Void-Fraction Regimes 2014 International Congress on Advances in Nuclear Power Plants – ICAPP 2014.
USA (2014) •Montoya, G.; Baglietto, E.; Lucas, D.; Krepper, E.; Hoehne, T. Comparative Analysis of High Void Fraction Regimes using an Averaging Euler-Euler Multi-Fluid Approach and a Generalized Two-Phase Flow (GENTOP) Concept 22nd International Conference on Nuclear Engineering – ICONE 22.
Czech Republic (2014) Development and Analysis of a CMFD Generalized Multi-Field Model for Treatment of Different Interfacial Scales in Churn-Turbulent and Transitional Flows CFD4NRS-5 – Application of CFD/CMFD Codes to Nuclear Reactor Safety Design and their Experimental Validation.