Assessment of different turbulence models in simulating axisymmetric flow in suddenly expanded nozzles
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,...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
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Science Publishing Corporation
2018
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| Online Access: | http://irep.iium.edu.my/66138/ http://irep.iium.edu.my/66138/1/66138_Assessment%20of%20different%20turbulence%20models.pdf http://irep.iium.edu.my/66138/7/66138_Assessment%20of%20different%20turbulence%20models%20in%20simulating_SCOPUS.pdf |
| _version_ | 1848786516636073984 |
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| author | Khan, Sher Afghan Ali, Mir Owais Riyadh, Miah Mohammed Hossen, Zahid Arefin, Nafis Mahdi |
| author_facet | Khan, Sher Afghan Ali, Mir Owais Riyadh, Miah Mohammed Hossen, Zahid Arefin, Nafis Mahdi |
| author_sort | Khan, Sher Afghan |
| building | IIUM Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T17:10:17Z |
| format | Article |
| id | iium-66138 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T17:10:17Z |
| publishDate | 2018 |
| publisher | Science Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-661382018-10-11T07:15:21Z http://irep.iium.edu.my/66138/ Assessment of different turbulence models in simulating axisymmetric flow in suddenly expanded nozzles Khan, Sher Afghan Ali, Mir Owais Riyadh, Miah Mohammed Hossen, Zahid Arefin, Nafis Mahdi TL787 Astronautics 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. Science Publishing Corporation 2018-08-24 Article PeerReviewed application/pdf en http://irep.iium.edu.my/66138/1/66138_Assessment%20of%20different%20turbulence%20models.pdf application/pdf en http://irep.iium.edu.my/66138/7/66138_Assessment%20of%20different%20turbulence%20models%20in%20simulating_SCOPUS.pdf 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 https://www.sciencepubco.com/index.php/ijet/article/view/18804/8603 10.14419/ijet.v7i3.29.18804 |
| spellingShingle | TL787 Astronautics Khan, Sher Afghan Ali, Mir Owais Riyadh, Miah Mohammed Hossen, Zahid Arefin, Nafis Mahdi Assessment of different turbulence models in simulating axisymmetric flow in suddenly expanded nozzles |
| title | Assessment of different turbulence models in simulating
axisymmetric flow in suddenly expanded nozzles |
| title_full | Assessment of different turbulence models in simulating
axisymmetric flow in suddenly expanded nozzles |
| title_fullStr | Assessment of different turbulence models in simulating
axisymmetric flow in suddenly expanded nozzles |
| title_full_unstemmed | Assessment of different turbulence models in simulating
axisymmetric flow in suddenly expanded nozzles |
| title_short | Assessment of different turbulence models in simulating
axisymmetric flow in suddenly expanded nozzles |
| title_sort | assessment of different turbulence models in simulating
axisymmetric flow in suddenly expanded nozzles |
| topic | TL787 Astronautics |
| url | http://irep.iium.edu.my/66138/ http://irep.iium.edu.my/66138/ http://irep.iium.edu.my/66138/ http://irep.iium.edu.my/66138/1/66138_Assessment%20of%20different%20turbulence%20models.pdf http://irep.iium.edu.my/66138/7/66138_Assessment%20of%20different%20turbulence%20models%20in%20simulating_SCOPUS.pdf |