Long-lasting effect of initial configuration in gravitational spreading of material fronts
We present the results from laboratory experiments and fully resolved simulations pertaining to finite-release turbulent density flows with a non-axisymmetric initial shape. First, we demonstrate that the effects of the initial shape influence the current’s evolution well into the long-time phase wh...
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2014
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| Online Access: | http://hdl.handle.net/10725/11540 https://doi.org/10.1007/s00162-014-0330-9 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://link.springer.com/article/10.1007/s00162-014-0330-9 |
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| _version_ | 1864513489213587456 |
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| author | Zgheib, Nadim |
| author2 | Bonometti, Thomas Balachandar, S. |
| author2_role | author author |
| author_facet | Zgheib, Nadim Bonometti, Thomas Balachandar, S. |
| author_role | author |
| dc.creator.none.fl_str_mv | Zgheib, Nadim Bonometti, Thomas Balachandar, S. |
| dc.date.none.fl_str_mv | 2014 2019-11-19T11:48:07Z 2019-11-19T11:48:07Z 2019-11-19 |
| dc.identifier.none.fl_str_mv | 1432-2250 http://hdl.handle.net/10725/11540 https://doi.org/10.1007/s00162-014-0330-9 Zgheib, N., Bonometti, T., & Balachandar, S. (2014). Long-lasting effect of initial configuration in gravitational spreading of material fronts. Theoretical and Computational Fluid Dynamics, 28(5), 521-529. http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://link.springer.com/article/10.1007/s00162-014-0330-9 |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | Theoretical and Computational Fluid Dynamics |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | Long-lasting effect of initial configuration in gravitational spreading of material fronts |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | We present the results from laboratory experiments and fully resolved simulations pertaining to finite-release turbulent density flows with a non-axisymmetric initial shape. First, we demonstrate that the effects of the initial shape influence the current’s evolution well into the long-time phase which would corresponds to the inertial self-similar phase in the case of planar or axisymmetric configurations. Then, we identify the physical mechanisms responsible for this dependence and propose a new model capable of capturing the dynamics of such releases. Finally, we show that this dependence on the initial configuration is robust for various types of gravity currents over a wide range of parameters such as Reynolds number, density ratio, and aspect ratio. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | LAURepo_a772fce0653d7a809febda8d388b684a |
| identifier_str_mv | 1432-2250 Zgheib, N., Bonometti, T., & Balachandar, S. (2014). Long-lasting effect of initial configuration in gravitational spreading of material fronts. Theoretical and Computational Fluid Dynamics, 28(5), 521-529. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/11540 |
| publishDate | 2014 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Long-lasting effect of initial configuration in gravitational spreading of material frontsZgheib, NadimBonometti, ThomasBalachandar, S.We present the results from laboratory experiments and fully resolved simulations pertaining to finite-release turbulent density flows with a non-axisymmetric initial shape. First, we demonstrate that the effects of the initial shape influence the current’s evolution well into the long-time phase which would corresponds to the inertial self-similar phase in the case of planar or axisymmetric configurations. Then, we identify the physical mechanisms responsible for this dependence and propose a new model capable of capturing the dynamics of such releases. Finally, we show that this dependence on the initial configuration is robust for various types of gravity currents over a wide range of parameters such as Reynolds number, density ratio, and aspect ratio.PublishedN/A2019-11-19T11:48:07Z2019-11-19T11:48:07Z20142019-11-19Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1432-2250http://hdl.handle.net/10725/11540https://doi.org/10.1007/s00162-014-0330-9Zgheib, N., Bonometti, T., & Balachandar, S. (2014). Long-lasting effect of initial configuration in gravitational spreading of material fronts. Theoretical and Computational Fluid Dynamics, 28(5), 521-529.http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.phphttps://link.springer.com/article/10.1007/s00162-014-0330-9enTheoretical and Computational Fluid Dynamicsinfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/115402021-03-19T10:47:38Z |
| spellingShingle | Long-lasting effect of initial configuration in gravitational spreading of material fronts Zgheib, Nadim |
| status_str | publishedVersion |
| title | Long-lasting effect of initial configuration in gravitational spreading of material fronts |
| title_full | Long-lasting effect of initial configuration in gravitational spreading of material fronts |
| title_fullStr | Long-lasting effect of initial configuration in gravitational spreading of material fronts |
| title_full_unstemmed | Long-lasting effect of initial configuration in gravitational spreading of material fronts |
| title_short | Long-lasting effect of initial configuration in gravitational spreading of material fronts |
| title_sort | Long-lasting effect of initial configuration in gravitational spreading of material fronts |
| url | http://hdl.handle.net/10725/11540 https://doi.org/10.1007/s00162-014-0330-9 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://link.springer.com/article/10.1007/s00162-014-0330-9 |