simulating multiphase flow in chemical & process engineering with transat july 2012 ascomp ...
TRANSCRIPT
- Slide 1
- Simulating Multiphase Flow in Chemical & Process Engineering with TransAT July 2012 ASCOMP www.ascomp.ch [email protected]
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- 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
- Slide 3
- TransAT results (intermediate: 0.5m points)
- Slide 4
- Flow in an impinging micro-jet reactor
- Slide 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
- Slide 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
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- CLICK ON MOVIES
- Slide 8
- Flow in a cyclone separator
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- Slide 10
- Multiphase Flow in a Hydrocyclone separator
- Slide 11
- Porous media represented with particules CLICK ON MOVIES
- Slide 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
- Slide 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
- Slide 14
- Recommendations
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- Fluidized beds Variable class of particles Four-way coupling momentum Accounts for particle packing Accounts for settling CLICK ON MOVIES
- Slide 16
- Sedimentation of particle media Variable class of particles Two-way coupling momentum Accounts for particle packing Accounts for settling CLICK ON MOVIES
- Slide 17
- Water Emulsion in Oil Settling Settling of water emulsion in oil. Model development phase.