Mixing of an interflow into the ambient water of Lake Iseo
River water flowing as an interflow was investigated using field data, collected in Lake Iseo (Italy), and theory. A theory for the lateral falling mechanism of plunging was developed for inflows when the initial densimetric Froude number (Fr 0 ) is slightly larger than unity. The ratio of the river...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Published: |
American Society of Limnology and Oceanography, Inc.
2013
|
| Online Access: | http://hdl.handle.net/20.500.11937/65913 |
| _version_ | 1848761231725297664 |
|---|---|
| author | Hogg, C. Marti, Clelia Huppert, H. Imberger, J. |
| author_facet | Hogg, C. Marti, Clelia Huppert, H. Imberger, J. |
| author_sort | Hogg, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | River water flowing as an interflow was investigated using field data, collected in Lake Iseo (Italy), and theory. A theory for the lateral falling mechanism of plunging was developed for inflows when the initial densimetric Froude number (Fr 0 ) is slightly larger than unity. The ratio of the river width to the offshore extent of the plunge region was equal to Fr 0 . The mixing ratio in the plunge region was 0.06. Theoretical results were quantitatively consistent with the length scale and mixing ratio of the observed plunge region. The progression of the inflow was interpreted as: initially a laterally falling plunge region with little mixing; followed by a steep underflow region with substantial mixing; and finally an intrusion. The intrusion was at first controlled dynamically by an inertiabuoyancy force balance. Further from the liftoff point, turbulent mixing effects dominated over those due to inertia. Ultimately, the intrusion diffused into the adjacent layers in such a way that the interflow fluid was effectively indistinguishable from the lake water. © 2013, by the Association for the Sciences of Limnology and Oceanography, Inc. |
| first_indexed | 2025-11-14T10:28:23Z |
| format | Journal Article |
| id | curtin-20.500.11937-65913 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:28:23Z |
| publishDate | 2013 |
| publisher | American Society of Limnology and Oceanography, Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-659132018-02-19T08:06:29Z Mixing of an interflow into the ambient water of Lake Iseo Hogg, C. Marti, Clelia Huppert, H. Imberger, J. River water flowing as an interflow was investigated using field data, collected in Lake Iseo (Italy), and theory. A theory for the lateral falling mechanism of plunging was developed for inflows when the initial densimetric Froude number (Fr 0 ) is slightly larger than unity. The ratio of the river width to the offshore extent of the plunge region was equal to Fr 0 . The mixing ratio in the plunge region was 0.06. Theoretical results were quantitatively consistent with the length scale and mixing ratio of the observed plunge region. The progression of the inflow was interpreted as: initially a laterally falling plunge region with little mixing; followed by a steep underflow region with substantial mixing; and finally an intrusion. The intrusion was at first controlled dynamically by an inertiabuoyancy force balance. Further from the liftoff point, turbulent mixing effects dominated over those due to inertia. Ultimately, the intrusion diffused into the adjacent layers in such a way that the interflow fluid was effectively indistinguishable from the lake water. © 2013, by the Association for the Sciences of Limnology and Oceanography, Inc. 2013 Journal Article http://hdl.handle.net/20.500.11937/65913 10.4319/lo.2013.58.2.0579 American Society of Limnology and Oceanography, Inc. unknown |
| spellingShingle | Hogg, C. Marti, Clelia Huppert, H. Imberger, J. Mixing of an interflow into the ambient water of Lake Iseo |
| title | Mixing of an interflow into the ambient water of Lake Iseo |
| title_full | Mixing of an interflow into the ambient water of Lake Iseo |
| title_fullStr | Mixing of an interflow into the ambient water of Lake Iseo |
| title_full_unstemmed | Mixing of an interflow into the ambient water of Lake Iseo |
| title_short | Mixing of an interflow into the ambient water of Lake Iseo |
| title_sort | mixing of an interflow into the ambient water of lake iseo |
| url | http://hdl.handle.net/20.500.11937/65913 |