Constitutive Models for Filtered Two-Fluid Models of Fluidized Gas–Particle Flows

2011 ◽  
Vol 50 (23) ◽  
pp. 13190-13201 ◽  
Author(s):  
Yesim Igci ◽  
Sankaran Sundaresan
Keyword(s):  
Constitutive Models ◽  
Fluid Models ◽  
Particle Flows ◽  
Two Fluid

Verification of filtered two-fluid models for gas-particle flows in risers

AIChE Journal ◽  
2010 ◽  
Vol 57 (10) ◽  
pp. 2691-2707 ◽  
Author(s):  
Yesim Igci ◽  
Sankaran Sundaresan
Keyword(s):  
Fluid Models ◽  
Particle Flows ◽  
Two Fluid

Filtered two-fluid models of fluidized gas-particle flows: New constitutive relations

AIChE Journal ◽  
2013 ◽  
Vol 59 (9) ◽  
pp. 3265-3275 ◽  
Author(s):  
Christian C. Milioli ◽  
Fernando E. Milioli ◽  
William Holloway ◽  
Kapil Agrawal ◽  
Sankaran Sundaresan
Keyword(s):  
Constitutive Relations ◽  
Fluid Models ◽  
Particle Flows ◽  
Two Fluid

Validation of filtered two-fluid models for gas–particle flows against experimental data from bubbling fluidized bed

2015 ◽  
Vol 284 ◽  
pp. 159-169 ◽  
Author(s):  
Shailesh S. Ozarkar ◽  
Xiaokang Yan ◽  
Shuyan Wang ◽  
Christian C. Milioli ◽  
Fernando E. Milioli ◽  
...  
Keyword(s):  
Experimental Data ◽  
Fluidized Bed ◽  
Fluid Models ◽  
Particle Flows ◽  
Bubbling Fluidized Bed ◽  
Two Fluid

Modeling of Sodium Two-Phase Flow With the TRACE Code

2009 ◽  
Author(s):  
Aurelia Chenu ◽  
Konstantin Mikityuk ◽  
Rakesh Chawla
Keyword(s):  
Single Phase ◽  
Two Phase Flow ◽  
Flow Simulation ◽  
Phase Flow ◽  
Fluid Models ◽  
Code System ◽  
Two Phase ◽  
Liquid Flows ◽  
Transfer Mechanisms ◽  
Two Fluid

In the framework of PSI’s FAST code system, the TRACE thermal-hydraulics code is being extended for representation of sodium two-phase flow. As the currently available version (v.5) is limited to the simulation of only single-phase sodium flow, its applicability range is not enough to study the behavior of a Sodium-cooled Fast Reactor (SFR) during a transient in which boiling is anticipated. The work reported here concerns the extension of the two-fluid models, which are available in TRACE for steam-water, to sodium two-phase flow simulation. The conventional correlations for ordinary gas-liquid flows are used as basis, with optional correlations specific to liquid metal when necessary. A number of new models for representation of the constitutive equations specific to sodium, with a particular emphasis on the interfacial transfer mechanisms, have been implemented and compared with the original closure models. As a first application, the extended TRACE code has been used to model experiments that simulate a loss-of-flow (LOF) accident in a SFR. The comparison of the computed results, with both the experimental data and SIMMER-III code predictions, has enabled validation of the capability of the modified TRACE code to predict sodium boiling onset, flow regimes, dryout, flow reversal, etc. The performed study is a first-of-a-kind application of the TRACE code to two-phase sodium flow. Other integral experiments are planned to be simulated to further develop and validate the two-phase sodium flow methodology.

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