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Ak-ɛ-PDF two-phase turbulence model for simulating sudden-expansion particle-laden flows

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Abstract

Ak-ɛ-PDF model based on statistical theory for turbulent gas-particle flows is proposed, and a numerical procedure combining the finite difference and finite fluctuating-velocity-group methods is used. The obtained statistically averaged equations have the same form as those obtained by using the Reynolds averaging. Using thek-ɛ-PDF model (PDF particle turbulence model combined with thek-ɛ gas turbulence model), many terms, such as the diffusion term in particle Reynolds Stress equations, can be accurately calculated for verifying the second-moment-closure model. Thek-ɛ-PDF model is used to simulate sudden-expansion particle-laden flow. comparison of the predictions using bothk-ɛ-PDF and thek-ɛ-kp models with experimental results shows that thek-ɛ-PDF model give more reasonable non-isotropic features of particle turbulence.

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References

  1. Zhou, L.X., Liao, C.M. and Chen, T., “A Unified Second-Order-Moment Two-Phase Turbulence Model for Simulating Gas-Particle Flows,” ASME, FED-185, pp.307–313, (1994).

    Google Scholar 

  2. M.W. Reeks, “On a Kinetic Equation for the Transport of Particles in Turbulent Flow,”Phy. Fluid A 3, No.3, pp.446, (1991).

    Article  MATH  ADS  Google Scholar 

  3. S.B. Pope, “PDF Methods for Turbulent Reactive Flow,” Progress of Energy and Combustion Science,11, pp.119, (1985).

    Article  ADS  Google Scholar 

  4. L.I. Zaichik, B.I. Nigmatulin and V.A. Pershukov, “Modeling of Dynamics of Aerosols in Near-Wall Turbulent Flows and Particle Deposition in Pipes,” Proceedings of the 2nd International Conference on Multiphase Flow,4, PI.9–16, (1993).

    Google Scholar 

  5. S.V. Patankar, «Numerical Heat Transfer and Fluid Flow», Hemisphere Press, (1980).

  6. Test Cases Predictions 7th Workshop on Two-Phase Flow Predictions, Erlangen, (1994).

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Authors and Affiliations

  1. Department of Engineering Mechanics, Tsinghua University, Beijing, China

    Y. Li & L. X. Zhou

Authors
  1. Y. Li
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  2. L. X. Zhou
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Li, Y., Zhou, L.X. Ak-ɛ-PDF two-phase turbulence model for simulating sudden-expansion particle-laden flows. J. of Thermal Science 5, 34–38 (1996). https://doi.org/10.1007/BF02663730

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  • DOI: https://doi.org/10.1007/BF02663730

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