Effect of rotation on coherent structures in wall-bounded turbulence
Proper orthogonal decomposition (POD) is applied to a rotating channel turbulence database generated by direct numerical simulation (DNS) to investigate the effect of spanwise rotation on the coherent structures in wall-bounded flows. The POD analysis reveals the appearance of elongated counter-rota...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Conference Proceeding |
| Published: |
2018
|
| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84959165594&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/45450 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Chiang Mai University |
| id |
th-cmuir.6653943832-45450 |
|---|---|
| record_format |
dspace |
| spelling |
th-cmuir.6653943832-454502018-01-24T06:10:35Z Effect of rotation on coherent structures in wall-bounded turbulence W. Rojanaratanangkule V. Juttijudata Proper orthogonal decomposition (POD) is applied to a rotating channel turbulence database generated by direct numerical simulation (DNS) to investigate the effect of spanwise rotation on the coherent structures in wall-bounded flows. The POD analysis reveals the appearance of elongated counter-rotating vortical structures at both low and moderate rotation numbers. Increasing the rotation rate results in a higher number of these elongated vortices, while reduces their size. 2018-01-24T06:10:35Z 2018-01-24T06:10:35Z 2014-01-01 Conference Proceeding 2-s2.0-84959165594 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84959165594&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/45450 |
| institution |
Chiang Mai University |
| building |
Chiang Mai University Library |
| country |
Thailand |
| collection |
CMU Intellectual Repository |
| description |
Proper orthogonal decomposition (POD) is applied to a rotating channel turbulence database generated by direct numerical simulation (DNS) to investigate the effect of spanwise rotation on the coherent structures in wall-bounded flows. The POD analysis reveals the appearance of elongated counter-rotating vortical structures at both low and moderate rotation numbers. Increasing the rotation rate results in a higher number of these elongated vortices, while reduces their size. |
| format |
Conference Proceeding |
| author |
W. Rojanaratanangkule V. Juttijudata |
| spellingShingle |
W. Rojanaratanangkule V. Juttijudata Effect of rotation on coherent structures in wall-bounded turbulence |
| author_facet |
W. Rojanaratanangkule V. Juttijudata |
| author_sort |
W. Rojanaratanangkule |
| title |
Effect of rotation on coherent structures in wall-bounded turbulence |
| title_short |
Effect of rotation on coherent structures in wall-bounded turbulence |
| title_full |
Effect of rotation on coherent structures in wall-bounded turbulence |
| title_fullStr |
Effect of rotation on coherent structures in wall-bounded turbulence |
| title_full_unstemmed |
Effect of rotation on coherent structures in wall-bounded turbulence |
| title_sort |
effect of rotation on coherent structures in wall-bounded turbulence |
| publishDate |
2018 |
| url |
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84959165594&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/45450 |
| _version_ |
1681422747553497088 |