Assessment of different turbulence models in simulating axisymmetric flow in suddenly expanded nozzles

  • Authors

    • Sher Afghan Khan
    • Mir Owais Ali
    • Miah Mohammed Riyadh
    • Zahid Hossen
    • Nafis Mahdi Arefin
    2018-08-24
    https://doi.org/10.14419/ijet.v7i3.29.18804
  • CFD, SST k-ω Model, ANSYS, NPR, Mach Number, Turbulence Models.

  • Abstract

    A numerical simulation was carried out to compare various turbulence models simulating axisymmetric nozzle flow past suddenly expanded ducts. The simulations were done for L/D = 10. The convergent-divergent nozzle has been modeled and simulated using the turbulence models: The Standard k-ε model, The Standard k-ω model and The SST k-ω model. Numerical simulations were done for Mach numbers 1.87, 2.2, and 2.58 and the nozzles were operated for NPRs in the range from 3 to 11. From the numerical analysis it is apparent that for a given Mach number and effect of NPR will result in maximum gain or loss of pressure. Numerical results are in good agreement with the experimental results.

     

     

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  • How to Cite

    Afghan Khan, S., Owais Ali, M., Mohammed Riyadh, M., Hossen, Z., & Mahdi Arefin, N. (2018). Assessment of different turbulence models in simulating axisymmetric flow in suddenly expanded nozzles. International Journal of Engineering & Technology, 7(3.29), 243-248. https://doi.org/10.14419/ijet.v7i3.29.18804

    Received date: 2018-09-02

    Accepted date: 2018-09-02

    Published date: 2018-08-24