Simulating spray coating processes by a three-dimensional lattice Boltzmann method-immersed boundary method approach

Guoqiang Wu, Sheng Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A numerical approach based on lattice Boltzmann method (LBM) coupled with immersed boundary method (IBM) is applied to investigate the three-dimensional (3D) coating process of a moving droplet against a moving particle. Particle-droplet size ratio (2/15 ≤ α ≤ 2/3), Weber number (6.845 ≤ We ≤ 171.114) as well as collision factor (0 ≤ B ≤ 1.0) on the coating processes are taken into account. According to present simulation, three regimes are identified: full coating, partial coating, and disintegration. Moreover, the partial coating regime can be divided into two sub-regimes according to Weber number. And the disintegration regime also has two sub-regimes, depending on Weber number. The coating outcomes are summarized and the regime maps (We-α and B-α) are presented. The findings learned from this work can provide guides for many industrial applications.

Original languageEnglish
Article number118091
Number of pages30
JournalChemical Engineering Science
Volume263
Early online date20 Sept 2022
DOIs
Publication statusPublished - 14 Dec 2022
Externally publishedYes

Keywords

  • Lattice Boltzmann method
  • Three-dimensional coating
  • Particle-droplet size ratio
  • Weber number
  • Collision factor

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering

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