On the role of sidewalls in the transition from straight to sinuous bedforms
We present results from direct numerical simulation on the transition from straight‐crested to sinuous‐crested bedforms. The numerical setup is representative of turbulent open channel flow over an erodible sediment bed at a shear Reynolds number of Reτ = 180. The immersed boundary method accounts f...
محفوظ في:
| المؤلف الرئيسي: | |
|---|---|
| مؤلفون آخرون: | |
| التنسيق: | article |
| منشور في: |
2019
|
| الوصول للمادة أونلاين: | http://hdl.handle.net/10725/11520 https://doi.org/10.1029/2019GL084098 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019GL084098 |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| _version_ | 1864513489197858816 |
|---|---|
| author | Zgheib, N. |
| author2 | Balachandar, S. |
| author2_role | author |
| author_facet | Zgheib, N. Balachandar, S. |
| author_role | author |
| dc.creator.none.fl_str_mv | Zgheib, N. Balachandar, S. |
| dc.date.none.fl_str_mv | 2019-11-15T13:36:10Z 2019-11-15T13:36:10Z 2019 2019-11-15 |
| dc.identifier.none.fl_str_mv | 1944-8007 http://hdl.handle.net/10725/11520 https://doi.org/10.1029/2019GL084098 Zgheib, N., & Balachandar, S. (2019). On the role of sidewalls in the transition from straight to sinuous bedforms. Geophysical Research Letters, 14 (16), 9612-9619. http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019GL084098 |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | Geophysical Research Letters |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | On the role of sidewalls in the transition from straight to sinuous bedforms |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | We present results from direct numerical simulation on the transition from straight‐crested to sinuous‐crested bedforms. The numerical setup is representative of turbulent open channel flow over an erodible sediment bed at a shear Reynolds number of Reτ = 180. The immersed boundary method accounts for the presence of the bed. The simulations are two‐way coupled such that the turbulent flow can erode and modify the bed, and in turn, the bed modifies the overlying flow. Coupling from the flow to the bed occurs through the Exner equation, while back coupling from the bed to the flow is achieved by imposing the no‐slip and no‐penetration condition at the immersed boundary. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | LAURepo_d062bb2f292a5481cf89ec0e2ace0864 |
| identifier_str_mv | 1944-8007 Zgheib, N., & Balachandar, S. (2019). On the role of sidewalls in the transition from straight to sinuous bedforms. Geophysical Research Letters, 14 (16), 9612-9619. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/11520 |
| publishDate | 2019 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | On the role of sidewalls in the transition from straight to sinuous bedformsZgheib, N.Balachandar, S.We present results from direct numerical simulation on the transition from straight‐crested to sinuous‐crested bedforms. The numerical setup is representative of turbulent open channel flow over an erodible sediment bed at a shear Reynolds number of Reτ = 180. The immersed boundary method accounts for the presence of the bed. The simulations are two‐way coupled such that the turbulent flow can erode and modify the bed, and in turn, the bed modifies the overlying flow. Coupling from the flow to the bed occurs through the Exner equation, while back coupling from the bed to the flow is achieved by imposing the no‐slip and no‐penetration condition at the immersed boundary.PublishedN/A2019-11-15T13:36:10Z2019-11-15T13:36:10Z20192019-11-15Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1944-8007http://hdl.handle.net/10725/11520https://doi.org/10.1029/2019GL084098Zgheib, N., & Balachandar, S. (2019). On the role of sidewalls in the transition from straight to sinuous bedforms. Geophysical Research Letters, 14 (16), 9612-9619.http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.phphttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019GL084098enGeophysical Research Lettersinfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/115202021-03-19T10:47:38Z |
| spellingShingle | On the role of sidewalls in the transition from straight to sinuous bedforms Zgheib, N. |
| status_str | publishedVersion |
| title | On the role of sidewalls in the transition from straight to sinuous bedforms |
| title_full | On the role of sidewalls in the transition from straight to sinuous bedforms |
| title_fullStr | On the role of sidewalls in the transition from straight to sinuous bedforms |
| title_full_unstemmed | On the role of sidewalls in the transition from straight to sinuous bedforms |
| title_short | On the role of sidewalls in the transition from straight to sinuous bedforms |
| title_sort | On the role of sidewalls in the transition from straight to sinuous bedforms |
| url | http://hdl.handle.net/10725/11520 https://doi.org/10.1029/2019GL084098 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019GL084098 |