1. Simulating Multiphase Flow in Chemical & Process Engineering with TransAT July 2012 ASCOMP www.ascomp.ch transat@ascomp.ch

2. No. of comp. particles: 43815 No. of real particles: 219075 Two-way coupling. Re of flow: ReD = 52400 Mass loading = 0.034 (in the primary jet). Diameter range: 11-120 microns LES using WALE Grid: 551.000 Swirling particulate jet mixing CLICK ON MOVIES

3. TransAT results (intermediate: 0.5m points)

4. Flow in an impinging micro-jet reactor

5. Instantaneous vorticity magnitudes: constant inflows (left) and unsteady asymmetric inflows (right). Instantaneous velocity magnitudes with 90 ml/min flow rate: constant inflows (left) and unsteady asymmetric inflows (right). Flow in an impinging micro-jet reactor

6. Mean U and V velocity components RMS : u’ and v’ components Comparison unsteady inflows (blue), constant inflows (red) and mPIV data (symbols). Flow in a confined impinging jet reactor

7. CLICK ON MOVIES

8. Flow in a cyclone separator

10. Multiphase Flow in a Hydrocyclone separator

11. Porous media represented with particules CLICK ON MOVIES

12. Droplet cooling (for CIBA Switzerland) THE ISSUES turbulent flow Particle affecting momentum Particle interacting with wall Particles exchanging heat Complex configuration Unsteady 240 hole, 600 hole, and 1000 hole configurations

13. Droplet cooling in gravity towers 22m high tower No. of comp. particles: 100.000 Two-way coupling momentum and heat. Re of flow: ReD = 75000 Mass loading = 0.1. Diameter range: 600 microns URANS & LES Grid: 2000.000 CLICK ON MOVIES

14. Recommendations

15. Fluidized beds Variable class of particles Four-way coupling momentum Accounts for particle packing Accounts for settling CLICK ON MOVIES

16. Sedimentation of particle media Variable class of particles Two-way coupling momentum Accounts for particle packing Accounts for settling CLICK ON MOVIES

17. Water Emulsion in Oil Settling Settling of water emulsion in oil. Model development phase.