The accuracy of numerical predictions for gas/liquid two-phase flows using Computational Multiphase Fluid Dynamics (CMFD) methods strongly depends on the formulation of models governing the interaction between the continuous liquid field and bubbles of different sizes. The purpose of this paper is to develop, test and validate a multifield model of adiabatic gas/liquid flows at intermediate gas concentrations (e.g., churn-turbulent flow regime), in which multiple-size bubbles are divided into a specified number of groups, each representing a prescribed range of sizes. The proposed modeling concept uses transport equations for the continuous liquid field and for each bubble field. The overall model has been implemented in the NPHASE-CMFD computer code. The results of NPHASE-CMFD simulations have been validated against the experimental data from the TOPFLOW test facility. Also, a parametric analysis on the effect of various modeling assumptions has been performed.
- Nuclear Engineering Division
Development and Validation of a Multifield Model of Churn-Turbulent Gas/Liquid Flows
- Views Icon Views
- Share Icon Share
- Search Site
Tselishcheva, EA, Antal, SP, Podowski, MZ, Guillen, DP, Beyer, M, & Lucas, D. "Development and Validation of a Multifield Model of Churn-Turbulent Gas/Liquid Flows." Proceedings of the 17th International Conference on Nuclear Engineering. Volume 5: Fuel Cycle and High and Low Level Waste Management and Decommissioning; Computational Fluid Dynamics (CFD), Neutronics Methods and Coupled Codes; Instrumentation and Control. Brussels, Belgium. July 12–16, 2009. pp. 317-326. ASME. https://doi.org/10.1115/ICONE17-75210
Download citation file: