Direct numerical simulation of a separated turbulent boundary layer
Direct numerical simulation of two turbulent boundary layer flows has been performed. The boundary layers are both subject to a strong adverse pressure gradient. In one case a separation bubble is created while in the other the boundary layer is everywhere attached. The data from the simulations are...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Online Access: | https://hdl.handle.net/10356/101616 http://hdl.handle.net/10220/18717 |
| _version_ | 1811681698831663104 |
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| author | Skote, Martin Henningson, Dan S. |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Skote, Martin Henningson, Dan S. |
| author_sort | Skote, Martin |
| collection | NTU |
| description | Direct numerical simulation of two turbulent boundary layer flows has been performed. The boundary layers are both subject to a strong adverse pressure gradient. In one case a separation bubble is created while in the other the boundary layer is everywhere attached. The data from the simulations are used to investigate scaling laws near the wall, a crucial concept in turbulence models. Theoretical work concerning the inner region in a boundary layer under an adverse pressure gradient is reviewed and extended to the case of separation. Excellent agreement between theory and data from the direct numerical simulation is found in the viscous sub-layer, while a qualitative agreement is obtained for the overlap region. |
| first_indexed | 2024-10-01T03:45:05Z |
| format | Journal Article |
| id | ntu-10356/101616 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:45:05Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1016162023-03-04T17:19:39Z Direct numerical simulation of a separated turbulent boundary layer Skote, Martin Henningson, Dan S. School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering Direct numerical simulation of two turbulent boundary layer flows has been performed. The boundary layers are both subject to a strong adverse pressure gradient. In one case a separation bubble is created while in the other the boundary layer is everywhere attached. The data from the simulations are used to investigate scaling laws near the wall, a crucial concept in turbulence models. Theoretical work concerning the inner region in a boundary layer under an adverse pressure gradient is reviewed and extended to the case of separation. Excellent agreement between theory and data from the direct numerical simulation is found in the viscous sub-layer, while a qualitative agreement is obtained for the overlap region. Published version 2014-01-28T03:09:04Z 2019-12-06T20:41:30Z 2014-01-28T03:09:04Z 2019-12-06T20:41:30Z 2002 2002 Journal Article https://hdl.handle.net/10356/101616 http://hdl.handle.net/10220/18717 10.1017/S0022112002002173 135417 en Journal of fluid mechanics © 2002 Cambridge University Press. This paper was published in Journal of Fluid Mechanics and is made available as an electronic reprint (preprint) with permission of Cambridge University Press. The paper can be found at the following official DOI: [http://dx.doi.org/10.1017/S0022112002002173]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering Skote, Martin Henningson, Dan S. Direct numerical simulation of a separated turbulent boundary layer |
| title | Direct numerical simulation of a separated turbulent boundary layer |
| title_full | Direct numerical simulation of a separated turbulent boundary layer |
| title_fullStr | Direct numerical simulation of a separated turbulent boundary layer |
| title_full_unstemmed | Direct numerical simulation of a separated turbulent boundary layer |
| title_short | Direct numerical simulation of a separated turbulent boundary layer |
| title_sort | direct numerical simulation of a separated turbulent boundary layer |
| topic | DRNTU::Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/101616 http://hdl.handle.net/10220/18717 |
| work_keys_str_mv | AT skotemartin directnumericalsimulationofaseparatedturbulentboundarylayer AT henningsondans directnumericalsimulationofaseparatedturbulentboundarylayer |