2019/09/20 by Cheng Peng, Peng, Cheng, Luis F. Ayala +3
Chemistry · Engineering · Physics and Astronomy · #Aerosol Filtration and Electrostatic Precipitation #Chemistry #Component (thermodynamics) #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Fugacity #Hydrocarbon #Hydrocarbon mixtures #Lattice Boltzmann Simulation Studies #Lattice Boltzmann methods #Phase (matter) #Phase Change Materials Research #Physics #Statistical physics #Thermodynamics #physics.comp-ph #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.1909.12390
published in arXiv (Cornell University) (Cornell University)
arxiv created 2020/11/24 · arxiv updated 2020/11/25
Current multi-component, multiphase pseudo-potential lattice Boltzmann models have thermodynamic inconsistencies that prevent them to correctly predict the thermodynamic phase behavior of partially miscible multi-component mixtures, such as hydrocarbon mixtures. This paper identifies these inconsistencies and attempts to design a thermodynamically consistent multi-component, multiphase pseudo-potential lattice Boltzmann model that allows mass transfer across the phase interfaces and is capable to predict the phase behavior of typically partially miscible hydrocarbon mixtures. The designed model defines the total interaction force for the entire phase and split the force into individual components. Through a properly derived force split factor associated with the volatility of each component, the model can achieve precise thermodynamic consistency in multi-component hydrocarbon mixtures, which is described by the iso-fugacity rule.