Towards pressure gradient sensitive transitional k-kl-omega model: The natural transition for low-re airfoils
The work deals with the development of a pressure gradient sensitive variant of a three-equation RANS model for turbulent and transitional flows. The model is based on the laminar kinetic energy approach by Walters and Cokljat [1]. The revisited model [2] was successfully validated for zero or mi...
| Main Authors: | , , , |
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| Format: | Proceeding Paper |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/56602/ http://irep.iium.edu.my/56602/7/56602.pdf |
| _version_ | 1848784770231697408 |
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| author | Fürst, Jiri Islam, Mazharul Příhoda, J. Wood, David |
| author_facet | Fürst, Jiri Islam, Mazharul Příhoda, J. Wood, David |
| author_sort | Fürst, Jiri |
| building | IIUM Repository |
| collection | Online Access |
| description | The work deals with the development of a pressure gradient sensitive variant of a three-equation
RANS model for turbulent and transitional flows. The model is based on the laminar kinetic
energy approach by Walters and Cokljat [1]. The revisited model [2] was successfully validated
for zero or mild pressure gradient flows with the so-called bypass transition (see e.g. [2]). In
the case of natural transition in adverse pressure gradient flows the model usually tends to
predict the transition too late, see [3], [4], [5]. The aim of present work is to improve the
model for the case of flows with very low free-stream turbulence levels with adverse pressure
gradient. As a first step we focus the attention to the onset of linear instability |
| first_indexed | 2025-11-14T16:42:31Z |
| format | Proceeding Paper |
| id | iium-56602 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T16:42:31Z |
| publishDate | 2015 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-566022017-04-21T03:06:10Z http://irep.iium.edu.my/56602/ Towards pressure gradient sensitive transitional k-kl-omega model: The natural transition for low-re airfoils Fürst, Jiri Islam, Mazharul Příhoda, J. Wood, David TL500 Aeronautics The work deals with the development of a pressure gradient sensitive variant of a three-equation RANS model for turbulent and transitional flows. The model is based on the laminar kinetic energy approach by Walters and Cokljat [1]. The revisited model [2] was successfully validated for zero or mild pressure gradient flows with the so-called bypass transition (see e.g. [2]). In the case of natural transition in adverse pressure gradient flows the model usually tends to predict the transition too late, see [3], [4], [5]. The aim of present work is to improve the model for the case of flows with very low free-stream turbulence levels with adverse pressure gradient. As a first step we focus the attention to the onset of linear instability 2015-02 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/56602/7/56602.pdf Fürst, Jiri and Islam, Mazharul and Příhoda, J. and Wood, David (2015) Towards pressure gradient sensitive transitional k-kl-omega model: The natural transition for low-re airfoils. In: Topical Problems of Fluid Mechanics 2015, 11th-13th February 2015, Prague, Czech Republic. http://www.it.cas.cz/fm/im/admin/showfile/data/my/Papers/2015/09-TPFM2015.pdf |
| spellingShingle | TL500 Aeronautics Fürst, Jiri Islam, Mazharul Příhoda, J. Wood, David Towards pressure gradient sensitive transitional k-kl-omega model: The natural transition for low-re airfoils |
| title | Towards pressure gradient sensitive transitional k-kl-omega model: The natural transition for low-re airfoils |
| title_full | Towards pressure gradient sensitive transitional k-kl-omega model: The natural transition for low-re airfoils |
| title_fullStr | Towards pressure gradient sensitive transitional k-kl-omega model: The natural transition for low-re airfoils |
| title_full_unstemmed | Towards pressure gradient sensitive transitional k-kl-omega model: The natural transition for low-re airfoils |
| title_short | Towards pressure gradient sensitive transitional k-kl-omega model: The natural transition for low-re airfoils |
| title_sort | towards pressure gradient sensitive transitional k-kl-omega model: the natural transition for low-re airfoils |
| topic | TL500 Aeronautics |
| url | http://irep.iium.edu.my/56602/ http://irep.iium.edu.my/56602/ http://irep.iium.edu.my/56602/7/56602.pdf |