Artículo
Development of a double-MRT pseudopotential model for tridimensional boiling simulation
Fecha de publicación:
09/2022
Editorial:
Elsevier France-Editions Scientifiques Medicales Elsevier
Revista:
International Journal Of Thermal Sciences
ISSN:
1290-0729
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A new thermal lattice Boltzmann scheme for the simulation of heat transfer and phase change in multiphase flows based on the pseudopotential formulation is introduced. The model includes a novel elaboration of the equilibrium distribution function, source term, and off-diagonal elements of the relaxation matrix. The resulting equation formally recovers the macroscopic advection-diffusion equation for energy transport avoiding unwanted non-physical terms. Moreover, the thermal diffusivity can be controlled using relaxation factors and free parameters of the equilibrium distribution. The new model is applied to simulate the stratification of a van der Waals fluid and the one-dimensional Stefan problem. In particular, the predictive capability of the model is tested against real experimental conditions, finding good agreement in the bubble growth rate and the wall-temperature dependence of the departure diameter.
Palabras clave:
BOILING
,
HEAT TRANSFER
,
LATTICE BOLTZMANN
,
MULTIPHASE FLOW
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Colecciones
Articulos(CCT - TANDIL)
Articulos de CTRO CIENTIFICO TECNOLOGICO CONICET - TANDIL
Articulos de CTRO CIENTIFICO TECNOLOGICO CONICET - TANDIL
Citación
Fogliatto, Ezequiel Oscar; Clausse, Alejandro; Teruel, Federico Eduardo; Development of a double-MRT pseudopotential model for tridimensional boiling simulation; Elsevier France-Editions Scientifiques Medicales Elsevier; International Journal Of Thermal Sciences; 179; 9-2022; 1-13
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