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Third Symposium on Turbulence and Shear Flow Phenomena
June, 25-27, 2003, International Center, Sendai, Japan

DOI: 10.1615/TSFP3

LES OF SWIRLING FLOW IN SEPARATION DEVICES

pages 911-916
DOI: 10.1615/TSFP3.1520
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要約

Large-eddy simulations (LES) of confined swirling flow with applications in cyclone separators are presented. First, the quality of the LES is assessed by means of experimental data obtained by Escudier et al. (1980) of the flow in a swirl-tube-geometry. Results with three subgrid-scale models, and three spatial resolutions will be compared. Consecutively, the turbulent flow in a cyclone separator used in industrial practice (a Stairmand high-efficiency cyclone) has been simulated. Good agreement in terms of the time-averaged flow, and in terms of the flow's dynamic behavior was obtained. Finally, the applicability of the LES flow field for performing particle separation calculations is demonstrated.

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