Numerical investigation of the effect of immiscible droplets on the dynamic behaviour of nucleate boiling bubbles using a three-phase boiling lattice Boltzmann flux solver

被引:0
作者
Zhang, Da [1 ,2 ]
Li, Yan [1 ]
Liang, Gong [3 ]
Zhu, Chenlin [4 ]
Shu, Chang [2 ]
机构
[1] Ocean Univ China, Mech Engn, Coll Engn, Qingdao 266100, Peoples R China
[2] Natl Univ Singapore, Dept Mech Engn, 10 Kent Ridge Crescent, Singapore 119260, Singapore
[3] China Univ Petr East China, Coll New Energy, Qingdao 266580, Peoples R China
[4] Anal Zhejiang Prov China Jiliang Univ, Key Lab Intelligent Mfg Qual Big Data Tracing, Zhejiang 310018, Peoples R China
关键词
Three-phase/three component flow; Boiling; Spontaneous nucleation; Diffuse method; Lattice Boltzmann Flux Solver; Large density ratio; Immiscible droplet; Boiling crisis; MULTIPHASE FLOWS; DENSITY RATIO; HEAT-TRANSFER; SIMULATION; DEPARTURE; MODEL;
D O I
10.1016/j.applthermaleng.2025.125553
中图分类号
O414.1 [热力学];
学科分类号
摘要
In this study, we first propose a three-phase boiling lattice Boltzmann flux solver (TB-LBFS) based on phase field theory. The TB-LBFS is capable of simulating boiling in two-phase/three-phase flows with a large density ratio, such as 1:1000. Then, the model's excellent capability in simulating two-phase/three-phase flow phase transitions has been validated through liquid lens and bubble departure in nucleate boiling. Finally, the present model is applied in the simulation of three-phase nucleate boiling. Furthermore, the effects of immiscible droplets on nucleate boiling bubbles' dynamics are numerically discussed. The results show that immiscible droplets can effectively accelerate the bubble departure from the wall to alleviate the boiling crisis.
引用
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页数:13
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