Turbulence model of kg-εg-kp-εp-kpg-θ is proposed. In the model, the two-phase velocity correlation
turbulent kinetic energy kpg is modeled by transport equation. To close this turbulence model, algebraic expressions
of two-phase Reynolds stresses and two-phase velocity correlation variable are established by considering
both gas-particle interaction and anisotropy. This turbulence model is used to simulate dense gas-particle flow
in a riser and in a downer. The predicted results show the core-annulus flow structure observed in the riser and
the skin effect of particle concentration in the downer. The present model gives simulation results in much better
agreement with the experimental results than those obtained by kg-εg-kp-εp-θ model which is simply closed using
a semi-empirical dimensional analysis.
ZENG Zhuo-xiong (曾卓雄), CHEN Chao-jie (陈超杰)
. Fluctuation Velocity Correlation Closure Model for
Dense Gas-Particle Turbulent Flow[J]. Journal of Shanghai Jiaotong University(Science), 2012
, 17(4)
: 447
-451
.
DOI: 10.1007/s12204-012-1303-z
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