On the role of sidewalls in the transition from straight to sinuous bedforms

LAUR Repository

Show simple item record

dc.contributor.author Zgheib, N.
dc.contributor.author Balachandar, S.
dc.date.accessioned 2019-11-15T13:36:10Z
dc.date.available 2019-11-15T13:36:10Z
dc.date.copyright 2019 en_US
dc.date.issued 2019-11-15
dc.identifier.issn 1944-8007 en_US
dc.identifier.uri http://hdl.handle.net/10725/11520
dc.description.abstract 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. en_US
dc.language.iso en en_US
dc.title On the role of sidewalls in the transition from straight to sinuous bedforms en_US
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SOE en_US
dc.author.idnumber 201706684 en_US
dc.author.department Industrial And Mechanical Engineering en_US
dc.description.embargo N/A en_US
dc.relation.journal Geophysical Research Letters en_US
dc.journal.volume 46 en_US
dc.journal.issue 16 en_US
dc.article.pages 9612-9619 en_US
dc.keywords Direct numerical simulations en_US
dc.keywords Sediment fluid interactions en_US
dc.keywords Immersed boundary method en_US
dc.keywords Sinous ripple crestline en_US
dc.keywords Turbulent flow en_US
dc.keywords Multiphase flow en_US
dc.identifier.doi https://doi.org/10.1029/2019GL084098 en_US
dc.identifier.ctation 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. en_US
dc.author.email nadim.zgheib@lau.edu.lb en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019GL084098 en_US
dc.orcid.id https://orcid.org/0000-0002-1032-8005 en_US
dc.author.affiliation Lebanese American University en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search LAUR

Advanced Search


My Account