publication . Article . Other literature type . 2019

Analysis of viscous fluid flow in a pressure-swirl atomizer using large-eddy simulation

Laurila, E.; Roenby, J.; Maakala, V.; Peltonen, P.; Kahila, H.; Vuorinen, V.;
Embargo
  • Published: 01 Apr 2019 Journal: International Journal of Multiphase Flow, volume 113, pages 371-388 (issn: 0301-9322, Copyright policy)
  • Publisher: Elsevier BV
  • Country: Finland
Abstract
Abstract A computational fluid dynamics study is carried out on the inner nozzle flow and onset of liquid sheet instability in a large-scale pressure-swirl atomizer with asymmetric inflow configuration for high viscosity fluids. Large-eddy simulations (LES) of the two-phase flow indicate the unsteady flow character inside the nozzle and its influence on liquid sheet formation. A novel geometric volume-of-fluid (VOF) method by Roenby et al. (2016), termed isoAdvector , is applied for sharp interface capturing. We carry out a Reynolds number sweep (420 ≤ Re ≤ 5300) in order to investigate the link between the asymmetric inner nozzle flow and liquid sheet character...
Subjects
arXiv: Physics::Fluid Dynamics
free text keywords: Physics and Astronomy(all), 222 Other engineering and technologies, Hollow cone spray, isoAdvector, Large-eddy simulation, LES, Pressure-swirl atomizer, Primary atomization, Two-phase flow, VOF, Volume-of-fluid method, Mechanical Engineering, General Physics and Astronomy, Fluid Flow and Transfer Processes
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