2D Simulation of boiling heat transfer on the wall with an improved hybrid lattice Boltzmann model

2019 ◽  
Vol 159 ◽  
pp. 113788 ◽  
Author(s):  
Anjie Hu ◽  
Dong Liu
Keyword(s):  
Heat Transfer ◽  
Lattice Boltzmann ◽  
Boiling Heat Transfer ◽  
Lattice Boltzmann Model ◽  
2D Simulation ◽  
Boltzmann Model

scholarly journals Numerical Simulation of Driven Convective Heat Transfer Based Lattice Boltzmann Method in a Porous Cavity

2015 ◽  
Vol 2015 ◽  
pp. 1-8
Author(s):  
You-Sheng Xu ◽  
Rui-Min Wang ◽  
Guo-Neng Li ◽  
You-Qu Zheng
Keyword(s):  
Heat Transfer ◽  
Lattice Boltzmann ◽  
Reynolds Numbers ◽  
Lattice Boltzmann Model ◽  
Published Data ◽  
Porous Cavity ◽  
Convective Thermal ◽  
Transfer Behavior ◽  
Boltzmann Method ◽  
Boltzmann Model

A lattice Boltzmann model of the uniform velocity, driven convective thermal conductivity in a porous cavity is studied. The Darcy, Richardson, and Reynolds numbers are shown to have a significant influence on the heat transfer behavior and the horizontal velocity of the flow field, while the porosity has little influence on either. The model is validated by the average Nusselt number at different Reynolds numbers, and the numerical results are in good agreement with available published data.

scholarly journals Simulation of flow boiling of nanofluid in tube based on lattice Boltzmann model

2019 ◽  
Vol 23 (1) ◽  
pp. 159-168
Author(s):  
Shouguang Yao ◽  
Tao Huang ◽  
Kai Zhao ◽  
Jianbang Zeng ◽  
Shuhua Wang
Keyword(s):  
Heat Transfer ◽  
Lattice Boltzmann ◽  
Bubble Growth ◽  
Growth Process ◽  
Flow Boiling ◽  
Lattice Boltzmann Model ◽  
Lateral Acceleration ◽  
Bubble Flow ◽  
The Right ◽  
Boltzmann Model

In this study, a lattice Boltzmann model of bubble flow boiling in a tube is established. The bubble growth, integration, and departure of 3% Al2O3-water nanofluid in the process of flow boiling are selected to simulate. The effects of different bubble distances and lateral accelerations a on the bubble growth process and the effect of heat transfer are investigated. Results showed that with an increase in the bubble distance, the bubble coalescence and the effect of heat transfer become gradual. With an increase in lateral acceleration a, the bubble growth is different. When a = 0.5e?7 and a = 0.5e?6, the bubble growth includes the process of bubble growth, coalescence, detachment, and fusion with the top bubble and when a = 0.5e?5 and a = 0.5e?4, the bubbles only experience growth and fusion, and the bubbles do not merge with the top bubble directly to the right movement because the lateral acceleration is too large, resulting in the enhanced effect of heat transfer in the tube.

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