期刊
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW
卷 71, 期 -, 页码 1-12出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ijheatfluidflow.2018.03.001
关键词
Lattice Boltzmann method; Phase transition; Droplet; Impacting angle; Wettability; Weber number
资金
- National Science Foundation of China (NSFC) [51776031]
- National Science Foundation of Liaoning Province of China [20170540182]
- Fundamental Research Funds for the Central Universities [DUT16QY03]
In the current work, the impacting process of a saturated fuel droplet on an inclined blade surface in superheated gas is simulated by the lattice Boltzmann method (LBM). Firstly, wetting boundary condition is derived for the phase transition LBM model, and then it is validated by calculating static contact angle of a droplet on partial wetting solid wall. Next, the dynamic behavior and phase transition of the droplet during its impacting process are analyzed on the basis of impacting angle, surface wettability, and Weber number. The results indicate that both deformation and evaporation of the droplet are enhanced by these three factors. Furthermore, the influence of impacting angle on droplet velocity is more obvious than that of other factors.
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