Three-Dimensional droplet splashing dynamics measurement with a stereoscopic shadowgraph system
作者: Y. WuQ. WangC.Y. Zhao
作者单位: 1School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd. Shanghai, 200240, China
刊名: International Journal of Heat and Fluid Flow, 2020, Vol.83
来源数据库: Elsevier Journal
DOI: 10.1016/j.ijheatfluidflow.2020.108576
关键词: Splashing morphologySecondary droplets3D particle tracking velocimetryStereoscopic shadowgraph system
原始语种摘要: Abstract(#br)In the current study, a novel three-dimensional (3D) measurement technique is established using a high-speed stereoscopic shadowgraph system, which is applied to investigate the 3D splashing dynamics of silicone oil dropping on liquid films quantitatively. Both crown-type splashing and crown wall bottom breakdown splashing morphologies are involved for measurement and comparison. Based on the shadowgraph images, the secondary droplets diameter, number and mass fraction are determined. The three-dimensional (3D) coordinates of the secondary droplets during the splashing processes are reconstructed and tracked, based on which the 3D trajectories, velocities, ejecting angles and kinetic energy are calculated and analysed. It is found that the secondary droplets in crown bottom...
全文获取路径: Elsevier  (合作)
影响因子:1.581 (2012)

  • splashing 喷溅
  • measurement 测量
  • shadowgraph 阴影照片
  • stereoscopic 立体的
  • breakdown 故障
  • system 
  • dimensional 量纲的
  • secondary 二次的
  • bottom 底壁
  • velocity 速度