Results of numerical simulation of the mixing of a turbulent jet with a cocurrent incompressible-fluid flow (Schmidt number Sc ≈ 1000) in a cylindrical channel of circular cross section (axisymmetric mixer) with the use of the standard k-ε turbulence model and different models for the averaged value of the mixture fraction and its variance have been given. For the problem of mixing of an inert passive impurity, two regimes of flow — the regime with the formation of a recirculation zone and that without its formation — have been considered. The formulated statistical model has been verified with the use of experimental data and results of calculation by large-eddy simulation.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 81, No. 4, pp. 666–681, July–August, 2008.
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Chornyi, A.D., Kornev, N.V. & Hassel, E. Simulation of the turbulent mixing of a passive impurity in a jet mixer. J Eng Phys Thermophy 81, 692–707 (2008). https://doi.org/10.1007/s10891-008-0097-1
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DOI: https://doi.org/10.1007/s10891-008-0097-1