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SPH modeling of droplet impact on solid boundary

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Abstract

A droplet undergoes spreading, rebounding or splashing when it impacts solid boundary, which is a typical phenomenon of free surface flow that exists widely in modern industry. Smoothed particle hydrodynamics (SPH) method is applied to numerically study the dynamical behaviors of the droplet impacting solid boundary, and both the spreading and rebounding phenomena of the droplet are reproduced in the simulation. The droplet deformation, flow fields and pressure fields inside the droplet at different moments are analyzed. Two important factors, the initial velocity and diameter, are discussed in determining the maximum spreading factor, revealing that the maximum spreading factor increases with the increase of the impact velocity and droplet diameter respectively.

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Authors and Affiliations

  1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300072, China

    Daming Li  (李大鸣), Ling Bai  (白 玲) & Mingyu Zhao  (赵明宇)

  2. Hebei Research Institute of Investigation and Design of Water Conservancy and Hydropower, Tianjin, 300250, China

    Lingling Li  (李玲玲)

Authors
  1. Daming Li  (李大鸣)
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  2. Ling Bai  (白 玲)
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  3. Lingling Li  (李玲玲)
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  4. Mingyu Zhao  (赵明宇)
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Corresponding author

Correspondence to Daming Li  (李大鸣).

Additional information

Supported by the National Natural Science Foundation of China(No. 51079095) and the Science Fund for Creative Research Groups of the National Natural Science Foundation of China (No. 51021004).

Li Daming, born in 1957, male, Dr, Prof.

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Li, D., Bai, L., Li, L. et al. SPH modeling of droplet impact on solid boundary. Trans. Tianjin Univ. 20, 112–117 (2014). https://doi.org/10.1007/s12209-014-2179-9

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  • DOI: https://doi.org/10.1007/s12209-014-2179-9

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