Eventos Anais de eventos
JEM 2019
5th Multiphase Flow Journeys
COMPARISON OF ENERGY MODELS BASED ON DISCRETE INTERFACE THEORY FOR MESOSCALE SIMULATION OF BOILING USING LATTICE BOLTZMANN METHOD
Submission Author:
Matheus Guzella , MG
Co-Authors:
Matheus Guzella, Luiz Czelusniak, Vinicius Pessoa Mapelli, Luben Cabezas Gómez
Presenter: Matheus Guzella
doi://10.26678/ABCM.JEM2019.JEM19-0015
Abstract
In this paper, mesoscopic simulations of boiling heat transfer are performed using a Hybrid Pseudopotential Lattice Boltzmann Method. In this model, the hydrodynamic equations are solved using the Pseudopotential Lattice Boltzmann Method (Shan-Chen Model) and the energy equation is solved by the 4th order Runge-Kutta Method. The collision operator is computed from the Bhatnagar-Gross-Krook model. Two-dimensional simulation results are presented first for the nucleation of a single bubble in the center of the heated surface. Results of a single bubble nucleation, growth and departure are presented for different energy equations considered in the literature. Results clearly show that some considerations performed during the derivation of these equations are questionable.
Keywords
Lattice Boltzmann method, Boiling Heat Transfer, Pseudopotential
