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    Effects of Particles Collision on Separating Gas–Particle Two-Phase Turbulent Flows

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    Type
    Article
    Authors
    Sihao, L. V.
    Yang, Weihua
    Li, Xiangli
    Li, Guohui
    KAUST Department
    Clean Combustion Research Center
    Date
    2013-10-10
    Online Publication Date
    2013-10-10
    Print Publication Date
    2014-03
    Permanent link to this record
    http://hdl.handle.net/10754/594077
    
    Metadata
    Show full item record
    Abstract
    A second-order moment two-phase turbulence model incorporating a particle temperature model based on the kinetic theory of granular flow is applied to investigate the effects of particles collision on separating gas–particle two-phase turbulent flows. In this model, the anisotropy of gas and solid phase two-phase Reynolds stresses and their correlation of velocity fluctuation are fully considered using a presented Reynolds stress model and the transport equation of two-phase stress correlation. Experimental measurements (Xu and Zhou in ASME-FED Summer Meeting, San Francisco, Paper FEDSM99-7909, 1999) are used to validate this model, source codes and prediction results. It showed that the particles collision leads to decrease in the intensity of gas and particle vortices and takes a larger effect on particle turbulent fluctuations. The time-averaged velocity, the fluctuation velocity of gas and particle phase considering particles colli-sion are in good agreement with experimental measurements. Particle kinetic energy is always smaller than gas phase due to energy dissipation from particle collision. Moreover, axial– axial and radial–radial fluctuation velocity correlations have stronger anisotropic behaviors. © King Fahd University of Petroleum and Minerals 2013
    Citation
    Lv S, Yang W, Li X, Li G (2013) Effects of Particles Collision on Separating Gas–Particle Two-Phase Turbulent Flows. Arabian Journal for Science and Engineering 39: 2353–2361. Available: http://dx.doi.org/10.1007/s13369-013-0728-5.
    Publisher
    Springer Nature
    Journal
    Arabian Journal for Science and Engineering
    DOI
    10.1007/s13369-013-0728-5
    ae974a485f413a2113503eed53cd6c53
    10.1007/s13369-013-0728-5
    Scopus Count
    Collections
    Articles; Clean Combustion Research Center

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