A Baseline Model for Monodisperse Bubbly Flows


A Baseline Model for Monodisperse Bubbly Flows

Rzehak, R.; Krepper, E.; Ziegenhein, T.; Lucas, D.

For practical applications the Euler-Euler two-fluid model relies on suitable closure relations describing interfacial exchange processes. The quest for models with a broad range of applicability allowing predictive simulations is an ongoing venture. A set of closure relations for adiabatic bubbly flow has been collected that represents the best available knowledge and may serve as a baseline for further improvements and extensions. In order to allow predictive simulations the model must work for a certain range of applications without any adjustments. This is shown here for flows that allow to impose a fixed bubble size distribution which bypasses the need to model coalescence and breakup processes.

Keywords: Dispersed gas-liquid multiphase flow; Euler-Euler two-fluid model; closure relations; CFD simulation; model validation

  • Contribution to proceedings
    CFD2014: 10th International Conference on Computational Fluid Dynamics In the Oil & Gas, Metallurgical and Process Industries, 17.-19.06.2014, Trondheim, Norway
    Proceedings of CFD2014
  • Lecture (Conference)
    CFD2014: 10th International Conference on Computational Fluid Dynamics In the Oil & Gas, Metallurgical and Process Industries, 17.-19.06.2014, Trondheim, Norway

Permalink: https://www.hzdr.de/publications/Publ-20223
Publ.-Id: 20223