Two-Phase Lattice Boltzmann Modeling of Boiling Phenomena
ORAL
Abstract
Modern advanced technologies such as electronics cooling need large heat removal from surfaces. Nucleate boiling phenomena provides sufficient cooling for these purposes because of large value of latent heat stored in the liquid. A modified multiphase lattice Boltzmann equation model is developed for liquid-vapor phase change phenomena. The volumetric mass flow rate at the interface due to phase change is included in the non-zero value of divergence of velocity. The evolution equation for hydrodynamic pressure is used to force the incompressibility in the bulk regions and the compressibility in the interfacial region. The one-dimensional Stefan problem with analytical solution is used to validate the proposed model and the two-dimensional nucleate boiling on a flat surface is simulated as the main case study.
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Authors
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Mahmood Mohammadi Shad
Mechanical Engineering Department, City College of City University of New York
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Taehun Lee
City College of City University of New York, Department of Mechanical Engineering, City College of City University of New York, Mechanical Engineering Department, City College of City University of New York, City College of New York, Department of Mechanical Engineering, City College of City University of New York, New York, 10031, USA, City College of the City University of New York, Mechanical Engineering, The City College of New York
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Masahiro Kawaji
Mechanical Engineering Department, City College of City University of New York