Abstract
Turbulent flows in channels with intense distributed injection are modeled using the large eddy method and the two-equation k-ɛ turbulence model. The calculations are carried out for different velocities of injection from the channel walls. For a channel with one-sided injection the results of large eddy simulation are in good agreement with the measured data, whereas the calculations in accordance with the k-ɛ model give a less convex cross-sectional velocity profile and an appreciable error in determining the surface friction coefficient on the impermeable wall and also have certain other shortcomings. In the case of two-sided injection, the results of the calculations by the large eddy method and the k-ɛ model are in good agreement with one another and the data of physical experiments.
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Original Russian Text © K.N. Volkov, V.N. Emel’yanov, 2008, published in Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, 2008, Vol. 43, No. 4, pp. 82–93.
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Volkov, K.N., Emel’yanov, V.N. Turbulent flows in channels with injection. results of large eddy simulation and the two-equation turbulence model. Fluid Dyn 43, 573–582 (2008). https://doi.org/10.1134/S0015462808040091
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DOI: https://doi.org/10.1134/S0015462808040091