Modifications to the k-kL-ω transition model based on Pohlhausen and Falkner-Skan profiles
We will present novel modifications of the three-equation k-kL-u: eddy viscosity model proposed by Walters and Cokljat [1] for the adverse pressure gradient flows that occur on wind turbine blades and airfoils. The original model was based on the k-u: framework with an additional transport equatio...
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| Format: | Conference or Workshop Item |
| Language: | English English |
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2015
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| Online Access: | http://irep.iium.edu.my/56604/ http://irep.iium.edu.my/56604/ http://irep.iium.edu.my/56604/1/1_Furst_etal.pdf http://irep.iium.edu.my/56604/13/56604.pdf |
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iium-566042017-04-25T02:30:18Z http://irep.iium.edu.my/56604/ Modifications to the k-kL-ω transition model based on Pohlhausen and Falkner-Skan profiles Fürst, Jiri Islam, Mazharul Príhoda, Jaromír Wood, David H. TJ Mechanical engineering and machinery We will present novel modifications of the three-equation k-kL-u: eddy viscosity model proposed by Walters and Cokljat [1] for the adverse pressure gradient flows that occur on wind turbine blades and airfoils. The original model was based on the k-u: framework with an additional transport equation for laminar kinetic energy which allows the prediction of natural or bypass laminar-turbulent transitions. The model uses only local information and is, therefore, easily implemented in modern CFD codes including Fluent and OpenFOAM. The original model shows very good agreement with experimental data for zero pressure gradient flows (see e.g. [1]) but it delays the transition for adverse pressure gradient flows at low free-stream turbulence levels [2]. Both stability analysis and experiments show that the pressure gradient has a big influence on transition [3] 2015 Conference or Workshop Item NonPeerReviewed application/pdf en http://irep.iium.edu.my/56604/1/1_Furst_etal.pdf application/pdf en http://irep.iium.edu.my/56604/13/56604.pdf Fürst, Jiri and Islam, Mazharul and Príhoda, Jaromír and Wood, David H. (2015) Modifications to the k-kL-ω transition model based on Pohlhausen and Falkner-Skan profiles. In: North American Wind Energy Academy (NAWEA) 2015 Symposium, 9th-11th June 2015, Virginia, USA. https://vtechworks.lib.vt.edu/handle/10919/54694 |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
International Islamic University Malaysia |
| building |
IIUM Repository |
| collection |
Online Access |
| language |
English English |
| topic |
TJ Mechanical engineering and machinery |
| spellingShingle |
TJ Mechanical engineering and machinery Fürst, Jiri Islam, Mazharul Príhoda, Jaromír Wood, David H. Modifications to the k-kL-ω transition model based on Pohlhausen and Falkner-Skan profiles |
| description |
We will present novel modifications of the three-equation k-kL-u: eddy viscosity model proposed by Walters
and Cokljat [1] for the adverse pressure gradient flows that occur on wind turbine blades and airfoils. The
original model was based on the k-u: framework with an additional transport equation for laminar kinetic
energy which allows the prediction of natural or bypass laminar-turbulent transitions. The model uses only
local information and is, therefore, easily implemented in modern CFD codes including Fluent and
OpenFOAM. The original model shows very good agreement with experimental data for zero pressure
gradient flows (see e.g. [1]) but it delays the transition for adverse pressure gradient flows at low free-stream
turbulence levels [2]. Both stability analysis and experiments show that the pressure gradient has a big
influence on transition [3] |
| format |
Conference or Workshop Item |
| author |
Fürst, Jiri Islam, Mazharul Príhoda, Jaromír Wood, David H. |
| author_facet |
Fürst, Jiri Islam, Mazharul Príhoda, Jaromír Wood, David H. |
| author_sort |
Fürst, Jiri |
| title |
Modifications to the k-kL-ω transition model based on Pohlhausen and Falkner-Skan profiles |
| title_short |
Modifications to the k-kL-ω transition model based on Pohlhausen and Falkner-Skan profiles |
| title_full |
Modifications to the k-kL-ω transition model based on Pohlhausen and Falkner-Skan profiles |
| title_fullStr |
Modifications to the k-kL-ω transition model based on Pohlhausen and Falkner-Skan profiles |
| title_full_unstemmed |
Modifications to the k-kL-ω transition model based on Pohlhausen and Falkner-Skan profiles |
| title_sort |
modifications to the k-kl-ω transition model based on pohlhausen and falkner-skan profiles |
| publishDate |
2015 |
| url |
http://irep.iium.edu.my/56604/ http://irep.iium.edu.my/56604/ http://irep.iium.edu.my/56604/1/1_Furst_etal.pdf http://irep.iium.edu.my/56604/13/56604.pdf |
| first_indexed |
2023-09-18T21:19:52Z |
| last_indexed |
2023-09-18T21:19:52Z |
| _version_ |
1777411810106802176 |