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2015 | 36 | 2 | 251-262

Article title

Comparison of Large Eddy Simulations and κ-ε Modelling of Fluid Velocity and Tracer Concentration in Impinging Jet Mixers


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Simulations of turbulent mixing in two types of jet mixers were carried out using two CFD models, large eddy simulation and κ-ε model. Modelling approaches were compared with experimental data obtained by the application of particle image velocimetry and planar laser-induced fluorescence methods. Measured local microstructures of fluid velocity and inert tracer concentration can be used for direct validation of numerical simulations. Presented results show that for higher tested values of jet Reynolds number both models are in good agreement with the experiments. Differences between models were observed for lower Reynolds numbers when the effects of large scale inhomogeneity are important.


jet mixers   mixing   PIV   PLIF   LES  









Physical description


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  • Warsaw University of Technology, Faculty of Chemical and Process Engineering, Warynskiego Street 1, 00-645 Warsaw, Poland
  • Warsaw University of Technology, Faculty of Chemical and Process Engineering, Warynskiego Street 1, 00-645 Warsaw, Poland
  • Warsaw University of Technology, Faculty of Chemical and Process Engineering, Warynskiego Street 1, 00-645 Warsaw, Poland


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