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Scale resolving simulations of the water flow through a rod bundle with split-type spacer grid

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, , Citation A A Matyushenko and A V Garbaruk 2014 J. Phys.: Conf. Ser. 572 012058 DOI 10.1088/1742-6596/572/1/012058

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1 Saint-Petersburg State Politechnical University Russia, Saint-Petersburg, 195251, Politechnicheskaya, 29, Russia

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1742-6596/572/1/012058

Abstract

Unsteady isothermal turbulent flow in periodic sub-channel of 5×5 rod bundle with split-type spacer grid is investigated using modern Scale Resolving Simulation methods: Wall Modelling Large Eddy Simulation (WMLES) and Scale Adapting Simulation (SAS). Solutions obtained with both methods show complicated swirling flow dissipating over the distance from spacer grid and are in a good agreement with the experimental data except an area in close vicinity of the vanes.

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10.1088/1742-6596/572/1/012058