首页|On the spreading behavior of a droplet on a circular cylinder using the lattice Boltzmann method

On the spreading behavior of a droplet on a circular cylinder using the lattice Boltzmann method

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The study of a droplet spreading on a circular cylinder under gravity was carried out using the pseudo-potential lattice Boltzmann high-density ratios multiphase model with a non-ideal Peng-Robinson equation of state.The calculation results indicate that the motion of the droplet on the cylinder can be divided into three stages:spreading,sliding,and aggregating.The contact length and contact time of a droplet on a cylindrical surface can be affected by factors such as the wettability gradient of the cylindrical wall,the Bond number,and droplet size.Furthermore,phase diagrams showing the relationship between Bond number,cylinder wall wettability gradient,and contact time as well as maximum contact length for three different droplet sizes are given.A theoretical foundation for additional research into the heat and mass transfer process between the droplet and the cylinder can be established by comprehending the variable rules of maximum contact length and contact time.

lattice Boltzmann methodsdropletcircular cylinderwettability gradient

杨帆、金虎、戴梦瑶

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School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China

Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,Shanghai 200093,China

2024

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子:0.995
ISSN:1674-1056
年,卷(期):2024.33(6)
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