Abstract
A new turbulence enhancement model was incorporated into the second-order moment two-phase turbulence model and was used to simulate gas-particle flows in swirling chambers and channels with different wall roughness. The results show that compared with the turbulence modification model not accounting for the wake effect, this model, together with the conventional particle source term, gives simulation results in better agreement with the experimental data.
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Abbreviations
- U:
-
mean velocity u
- v, w:
-
fluctuating velocity
- uu:
-
Reynolds stress
- d:
-
particle diameter
- k:
-
kinetic energy
- αp :
-
particle volume fraction
- ρp :
-
particle density
- β:
-
drag coefficient
- ε:
-
kinetic energy dissipation rate
- p:
-
particle
- g:
-
gas
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Biography: ZENG Zhuo-zhi (1956-), Female, Lecturer
Project supported by the China Postdoctoral Science Foundation (Grant No.2004036239).
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Zeng, Zz., Zeng, Zx., Nan, Y. et al. Numerical Simulation of Gas Turbulence Enhancement by Particle-Wake Effect. J Hydrodyn 19, 155–159 (2007). https://doi.org/10.1016/S1001-6058(07)60042-0
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DOI: https://doi.org/10.1016/S1001-6058(07)60042-0