Skip to main content
Log in

Gas turbulence modulation model for gas-solid flows in two-fluid approach

  • Published:
Journal of Shanghai Jiaotong University (Science) Aims and scope Submit manuscript

Abstract

Turbulence enhancement by particle wake effect is studied by numerical simulation of gas turbulent flows passing over particle under various particle sizes, inlet gas velocities, gas viscosity, gas density and the distance of particles. By performing dimension analysis and using the form of gas-particle interaction source term for reference, a new semi-empirical turbulence enhancement model by the particle-wake effect is proposed. The turbulence model is then incorporated into second-order moment model for simulating gas-particle flows in a horizontal channel with different wall roughness and a sudden-expansion chamber. The results show that this model is with higher calculating accuracy than another two turbulence models in comparison with the experimental results.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Huang R G, Zhang H Q. Numerical simulation of gas-particle two-phase flow in the primary air channel of direct-flow pulverized coal burner [J]. Chinese Journal of Hydrodynamics, 2008, 23(5): 507–514 (in Chinese).

    Google Scholar 

  2. Zeng Z X, Zhou L X. A two-scale second-order moment particle turbulence model for gas-particle flow [J]. Journal of Hydrodynamics. Ser B, 2006, 18(6): 659–665.

    Article  MathSciNet  Google Scholar 

  3. Yuan Z, Michaelides E E. Turbulence modulation in particulate flows-a theoretical approach [J]. International Journal of Multiphase Flow, 1992, 18: 779–785.

    Article  MATH  Google Scholar 

  4. Yarin L P, Hetsroni G. Turbulence intensity in dilute two-phase flows: The particles-turbulence interaction in dilute two-phase flow [J]. International Journal of Multiphase Flow, 1994, 20: 27–44.

    Article  MATH  Google Scholar 

  5. Kenning V M, Crowe C T. On the effect of particles on carrier phase turbulence in gas-particle flows [J]. International Journal of Multiphase Flow, 1997, 23: 403–408.

    Article  Google Scholar 

  6. Yu Y, Zhou L X, Wang B G. Modeling of turbulence modification using two-time-scale dissipation models and accounting for the particle wake effect [J]. Chinese Journal of Chemical Engineering, 2006, 14(3): 314–320.

    Article  MathSciNet  Google Scholar 

  7. Zeng Z X. Second-order moment two-phase turbulence model accounting for turbulence modulation in swirling sudden-expansion chamber [J]. Journal of Hydrodynamics. Ser B, 2008, 20(1): 54–59.

    Article  Google Scholar 

  8. Johnson T A, Patel V C. Flow past a sphere up to a Reynolds number of 300 [J]. Journal of Fluid Mechanics, 1999, 378: 19–70.

    Article  Google Scholar 

  9. Constantinescu G S, Squires K D. LES and DES investigations of turbulent flow over a sphere at Re = 10 000 [J]. Flow, Turbulence and Combustion, 2003, 70(1–4): 267–298.

    Article  MATH  Google Scholar 

  10. Lilly D K. On the application of the eddy viscosity concept in the inertial subrange of turbulence [R]. Manuscript 123, Washington D C: National Center for Atmospheric Research, 1966.

    Google Scholar 

  11. Wu J S, Faeth G M. Sphere wakes at moderate Reynolds numbers in a turbulent environment [J]. AIAA Journal, 1994, 32(3): 535–541.

    Article  Google Scholar 

  12. Zhou L X. Dynamics of multiphase turbulent reacting fluid flows [M]. Beijing: National Defence Industry Press, 2002 (in Chinese).

    Google Scholar 

  13. Zhou L X, Liao C M, Chen T. A unified second-order-moment two-phase turbulence model for simulating gas-particle flows [C]//Numerical Methods in Multiphase Flows, ASME-FED-185. Lake Tahoe, USA: ASME, 1994: 307–313.

    Google Scholar 

  14. Yu Y, Zhou L X, Wang B G, et al. A USM-λ two-phase turbulence model for simulating dense gasparticle flows [J]. Acta Mechanica Sinica, 2005, 21(3): 228–234.

    Article  Google Scholar 

  15. Kussin J, Sommerfeld M. Experimental studies on particle behavior and turbulence modification in horizontal channel flow with different wall roughness [J]. Experiments in Fluids, 2002, 33: 143–159.

    Google Scholar 

  16. Xu Y, Zhou L X. Experimental studies on two-phase fluctuation velocity correlation in sudden-expansion flows [D]//ASME-FED Summer Meeting. Washington: Washington State University, 1999: 7909–7913.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Zhuo-xiong Zeng  (曾卓雄).

Additional information

Foundation item: the National Natural Science Foundation of China (No. 50736006), the Aero-Science Fund (No. 2009ZB56004), and the Jiangxi Provincial Natural Science Foundation (Nos. 2009GZC0100 and 2008GZW0016)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zeng, Zx., Pan, Y. & Zhou, Lx. Gas turbulence modulation model for gas-solid flows in two-fluid approach. J. Shanghai Jiaotong Univ. (Sci.) 15, 428–433 (2010). https://doi.org/10.1007/s12204-010-1028-9

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12204-010-1028-9

Key words

CLC number

Navigation