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Mohammad Javad Sayyari(모하메드 자바드 사이야리),Mohammad Hassan Ahmadian(모하메드 하산 아하마디안),Kyung Chun Kim(김경천) 대한기계학회 2020 대한기계학회 춘추학술대회 Vol.2020 No.12
This paper is a 3D extension of a pseudo-potential multi-phase lattice Boltzmann model proposed in the literature. The new terms included in the forcing source enable us to change surface tension independent of density ratio without modifying the velocity formula in the original Shan and Chen multi-phase model. The Peng-Robinson equation of state is used in this research. For validation, some benchmark cases including thermodynamic consistency, Laplace law, and contact angle tests are performed using a D3Q27 multi-relaxation time lattice Boltzmann model. In addition, for the first time, we added a D3Q27 single-relaxation time lattice Boltzmann model to the current multi-phase model for solving energy equation during the droplet evaporation, admitting the D<SUP>2</SUP>-law. Results show that the proposed method is reliable for modelling flow and heat transfer problems as long as the reduced temperature is higher than 0.75.