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

  • Abstract
  • Keywords
  • References
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  • 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.



  • Keywords

    CFD; SST k-ω Model; ANSYS; NPR; Mach Number; Turbulence Models.

  • References

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Article ID: 18804
DOI: 10.14419/ijet.v7i3.29.18804

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