New Trends in Multiscale and Multiphysics Simulation of Transport Phenomena in Novel Engineering Systems

The paper reports on the progress made in predicting large- and small-scale single and two-phase flows with heat transfer using the CMFD code TransAT. In the multi-phase context, the code uses the Level Set approach as the “Interface Tracking Method” of reference. The solver incorporates phase-chang...

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Bibliographic Details
Published in:Journal of applied fluid mechanics 2011-01, Vol.4 (2), p.121-127
Main Author: Lakehal, D
Format: Article
Language:English
Subjects:
Cartesian coordinates
CMFD
Heat transfer
Magnetic fields
Marangoni convection
Multi-phase
Multi-physics
Multiphase flow
Scale models
Surface tension
Three dimensional flow
Three dimensional models
Tracking
TransAT
Transport phenomena
Two phase flow
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Summary:The paper reports on the progress made in predicting large- and small-scale single and two-phase flows with heat transfer using the CMFD code TransAT. In the multi-phase context, the code uses the Level Set approach as the “Interface Tracking Method” of reference. The solver incorporates phase-change capabilities, surface tension and triple-line dynamics models, Marangoni effects, electric and magnetic fields, and a wall micro-film sub-grid scale model for lubrication. Complex 3D examples shown here were treated using a fully automatized version of the code, using the Immersed Surfaces Technique (IST) to map complex components into a simple rectangular Cartesian grid. It is shown that real coupled two-phase heat transfer (conjugate) problems are within reach of modern CMFD code using interface tracking, with relatively fast response times: 3D coupled two-phase flow heat transfer can run on a simple Linux PC cluster within 24 H time.
ISSN:1735-3572
1735-3645
1735-3645
DOI:10.36884/jafm.4.02.11924