Hybrid CFD simulation of two-phase flow in inline flow splitters using VOF and Lagrangian models
Two-phase CFD simulation with a transition from dispersed flow to separated swirling flow is of highest numerical challenge. Since DNS simulations are intractable for this class of problems, approaches with sub-grid models are required. As such a hybrid approach using an Euler/Euler frame with the Volume-of-Fluid (VoF) method to model the disperse and separated flow with some interface resolution coupled to a Lagrangian solver for droplet flow is most promising but also at the cutting edge of CFD modelling.
Research Activities / Objectives:
- Develop a robust Euler/Euler-VoF model for interface capturing downstream the swirl for high interfacial shear forces
- Coupling of the E/E-VoF model with a Lagrangian model for droplets and bubbles
- Validate models with experimental data from TU Delft and HZDR