Visualizing brine channel development and convective processes during artificial sea-ice growth using Schlieren optical methods
Two non-invasive optical Schlieren methods have been adapted to visualize brine channel development and convective processes in experimentally grown sea ice obtained when a NaCl aqueous solution is cooled from above in a quasi-two-dimensional Hele-Shaw cell. The two different visualization methods,...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/229830 2023-05-15T16:57:32+02:00 Visualizing brine channel development and convective processes during artificial sea-ice growth using Schlieren optical methods Middleton, Ceri Thomas, Carelle De Wit, Anne Tison, Jean-Louis 2016 2 full-text file(s): application/pdf | application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/229830 https://dipot.ulb.ac.be/dspace/bitstream/2013/229830/7/doi_213457.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/229830/4/16.Middleton_ice.pdf fr fre uri/info:doi/10.1017/jog.2015.1 uri/info:scp/84979664029 https://dipot.ulb.ac.be/dspace/bitstream/2013/229830/7/doi_213457.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/229830/4/16.Middleton_ice.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/229830 2 full-text file(s): info:eu-repo/semantics/openAccess | info:eu-repo/semantics/restrictedAccess Journal of Glaciology, 62 Sciences exactes et naturelles Sciences de la terre et du cosmos Physique Glaciologie Mécanique des fluides Glaciological instruments and methods Sea ice Sea ice growth and decay info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2016 ftunivbruxelles 2022-06-12T21:30:06Z Two non-invasive optical Schlieren methods have been adapted to visualize brine channel development and convective processes in experimentally grown sea ice obtained when a NaCl aqueous solution is cooled from above in a quasi-two-dimensional Hele-Shaw cell. The two different visualization methods, i.e. traditional and synthetic Schlieren optical imaging, produce high spatial resolution images of transport processes during ice growth, without any external perturbation. These images allow observations of the flow dynamics simultaneously within the ice layer, around the ice/water interface, and in the liquid water layer, revealing connections between the processes occurring within the two phases. Results from these methods show that desalination of the growing ice layer occurs by two concurrent, yet independent, mechanisms: (1) boundary layer convection persisting throughout the ice growth period, with short fingers present just below the ice/water interface, and (2) gravity-driven drainage from the brine channels producing deep penetrating convective streamers, which appear after a given time from the beginning of ice growth. The improved visualization and qualitative characterization of these processes show that Schlieren optical methods have exciting potential applications for future study of convective processes during sea-ice growth. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Journal of Glaciology Sea ice DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
French |
topic |
Sciences exactes et naturelles Sciences de la terre et du cosmos Physique Glaciologie Mécanique des fluides Glaciological instruments and methods Sea ice Sea ice growth and decay |
spellingShingle |
Sciences exactes et naturelles Sciences de la terre et du cosmos Physique Glaciologie Mécanique des fluides Glaciological instruments and methods Sea ice Sea ice growth and decay Middleton, Ceri Thomas, Carelle De Wit, Anne Tison, Jean-Louis Visualizing brine channel development and convective processes during artificial sea-ice growth using Schlieren optical methods |
topic_facet |
Sciences exactes et naturelles Sciences de la terre et du cosmos Physique Glaciologie Mécanique des fluides Glaciological instruments and methods Sea ice Sea ice growth and decay |
description |
Two non-invasive optical Schlieren methods have been adapted to visualize brine channel development and convective processes in experimentally grown sea ice obtained when a NaCl aqueous solution is cooled from above in a quasi-two-dimensional Hele-Shaw cell. The two different visualization methods, i.e. traditional and synthetic Schlieren optical imaging, produce high spatial resolution images of transport processes during ice growth, without any external perturbation. These images allow observations of the flow dynamics simultaneously within the ice layer, around the ice/water interface, and in the liquid water layer, revealing connections between the processes occurring within the two phases. Results from these methods show that desalination of the growing ice layer occurs by two concurrent, yet independent, mechanisms: (1) boundary layer convection persisting throughout the ice growth period, with short fingers present just below the ice/water interface, and (2) gravity-driven drainage from the brine channels producing deep penetrating convective streamers, which appear after a given time from the beginning of ice growth. The improved visualization and qualitative characterization of these processes show that Schlieren optical methods have exciting potential applications for future study of convective processes during sea-ice growth. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Middleton, Ceri Thomas, Carelle De Wit, Anne Tison, Jean-Louis |
author_facet |
Middleton, Ceri Thomas, Carelle De Wit, Anne Tison, Jean-Louis |
author_sort |
Middleton, Ceri |
title |
Visualizing brine channel development and convective processes during artificial sea-ice growth using Schlieren optical methods |
title_short |
Visualizing brine channel development and convective processes during artificial sea-ice growth using Schlieren optical methods |
title_full |
Visualizing brine channel development and convective processes during artificial sea-ice growth using Schlieren optical methods |
title_fullStr |
Visualizing brine channel development and convective processes during artificial sea-ice growth using Schlieren optical methods |
title_full_unstemmed |
Visualizing brine channel development and convective processes during artificial sea-ice growth using Schlieren optical methods |
title_sort |
visualizing brine channel development and convective processes during artificial sea-ice growth using schlieren optical methods |
publishDate |
2016 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/229830 https://dipot.ulb.ac.be/dspace/bitstream/2013/229830/7/doi_213457.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/229830/4/16.Middleton_ice.pdf |
genre |
Journal of Glaciology Sea ice |
genre_facet |
Journal of Glaciology Sea ice |
op_source |
Journal of Glaciology, 62 |
op_relation |
uri/info:doi/10.1017/jog.2015.1 uri/info:scp/84979664029 https://dipot.ulb.ac.be/dspace/bitstream/2013/229830/7/doi_213457.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/229830/4/16.Middleton_ice.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/229830 |
op_rights |
2 full-text file(s): info:eu-repo/semantics/openAccess | info:eu-repo/semantics/restrictedAccess |
_version_ |
1766049093936742400 |