scholarly journals Non-Equilibrium Physics of Fluctuations near QCD Critical Point

2010 ◽  
Vol 186 ◽  
pp. 434-439 ◽  
Author(s):  
Mikhail A.Stephanov
Keyword(s):  
Critical Point ◽  
Qcd Critical Point ◽  
Non Equilibrium

scholarly journals Bootstraping the QCD critical point

2003 ◽  
Vol 563 (3-4) ◽  
pp. 165-172 ◽  
Author(s):  
N.G. Antoniou ◽  
A.S. Kapoyannis
Keyword(s):  
Critical Point ◽  
Qcd Critical Point

scholarly journals The QCD Critical Point: Marching towards continuum

2013 ◽  
Vol 904-905 ◽  
pp. 883c-886c ◽  
Author(s):  
Saumen Datta ◽  
Rajiv V. Gavai ◽  
Sourendu Gupta
Keyword(s):  
Critical Point ◽  
Qcd Critical Point

scholarly journals Signature of QCD critical point: Anomalous transverse velocity dependence of antiproton–proton ratio

2009 ◽  
Vol 673 (4-5) ◽  
pp. 268-271 ◽  
Author(s):  
Xiao-Feng Luo ◽  
Ming Shao ◽  
Cheng Li ◽  
Hong-Fang Chen
Keyword(s):  
Critical Point ◽  
Transverse Velocity ◽  
Velocity Dependence ◽  
Qcd Critical Point

Numerical Simulation of Non-Equilibrium Condensation in Supercritical CO2 Compressors

2019 ◽  
Author(s):  
Kevin W. Brinckman ◽  
Ashvin Hosangadi ◽  
Zisen Liu ◽  
Timothy Weathers
Keyword(s):  
Critical Point ◽  
Residence Time ◽  
Supercritical Co2 ◽  
Equilibrium Phase ◽  
Nucleation Theory ◽  
Classical Nucleation Theory ◽  
Working Fluid ◽  
Modeling Framework ◽  
Test Loop ◽  
Non Equilibrium

Abstract There is increasing interest in supercritical CO2 processes, such as Carbon Capture and Storage, and electric power production, which require compressors to pressurize CO2 above the critical point. For supercritical compressor operation close to the critical point there is a concern that the working fluid could cross into the subcritical regime which could lead to issues with compressor performance if condensation was to occur in regions where the fluid dropped below the saturation point. Presently, the question of whether there is sufficient residence time at subcritical conditions for condensation onset in supercritical CO2 compressors is an unresolved issue. A methodology is presented towards providing a validated simulation capability for predicting condensation in supercritical CO2 compressors. The modeling framework involves the solution of a discrete droplet phase coupled to the continuum gas phase to track droplet nucleation and growth. The model is implemented in the CRUNCH CFD® Computational Fluid Dynamics code that has been extensively validated for simulation at near critical conditions with a real fluid framework for accurate predictions of trans-critical CO2 processes. Results of predictions using classical nucleation theory to model homogeneous nucleation of condensation sites in supersaturated vapor regions are presented. A non-equilibrium phase-change model is applied to predict condensation on the nuclei which grow in a dispersed-phase droplet framework. Model validation is provided against experimental data for condensation of supercritical CO2 in a De Laval nozzle including the Wilson line location. The model is then applied for prediction of condensation in the compressor of the Sandia test loop at mildly supercritical inlet conditions. The results suggest that there is sufficient residence time at the conditions analyzed to form localized nucleation sites, however, droplets are expected to be short lived as the model predicts they will rapidly vaporize.

scholarly journals Diffusive dynamics of critical fluctuations near the QCD critical point

2019 ◽  
Vol 99 (11) ◽  
Author(s):  
Marlene Nahrgang ◽  
Marcus Bluhm ◽  
Thomas Schäfer ◽  
Steffen A. Bass
Keyword(s):  
Critical Point ◽  
Qcd Critical Point ◽  
Critical Fluctuations ◽  
Diffusive Dynamics
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