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

Khan, Sher Afghan and Ali, Mir Owais and Riyadh, Miah Mohammed and Hossen, Zahid and Arefin, Nafis Mahdi (2018) Assessment of different turbulence models in simulating axisymmetric flow in suddenly expanded nozzles. International Journal of Engineering & Technology, 7 (3.29 (Special issue 29)). pp. 243-248. ISSN 2227-524X

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Abstract

A numerical simulation was carried out to compare various turbulence models simulating axisymmetric nozzle flow past suddenly ex-panded ducts. The simulations were done for L/D = 10. The convergent-divergent nozzle has been modeled and simulated using the turbu-lence 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.

Item Type:	Article (Journal)
Additional Information:	7395/66138
Uncontrolled Keywords:	CFD; SST k-ω Model; ANSYS; NPR; Mach Number; Turbulence Models
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL787 Astronautics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering Kulliyyah of Engineering
Depositing User:	Prof. Dr. Sher Afghan Khan
Date Deposited:	13 Sep 2018 10:26
Last Modified:	11 Oct 2018 15:15
URI:	http://irep.iium.edu.my/id/eprint/66138

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