Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions

We investigate the relaxation of two line defects of opposite strength in a confined nematic liquidcrystal by solving the coupled tensor order parameter evolution and momentum balance equations in three dimensions. The inclusion of hydrodynamic interactions causes the defects to move at different ve...

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Autores:
Gettelfinger, Brian T.
Hung, Fransisco R.
Hernandez Ortiz, Juan P.
Guzman, Orlando
Rey, Alejandro D.
Abbott, Nicholas L.
de Pablo, Juan J.
Tipo de recurso:
Article of journal
Fecha de publicación:
2008
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/23014
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/23014
http://bdigital.unal.edu.co/14049/
Palabra clave:
liquid crystal
defect relaxation
confinement and hydrodynamic interactions.
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Gettelfinger, Brian T.e339c679-4058-434a-ad7b-26134a6ed624300Hung, Fransisco R.91075adc-9554-4742-b65d-c6c3d7df55cf300Hernandez Ortiz, Juan P.5f7caf07-54eb-4cee-9ac3-3ccfa2ab72cd300Guzman, Orlando46f99faf-d0d3-486c-86af-011138167163300Rey, Alejandro D.d535b638-f443-4c9d-a9ea-b20451631073300Abbott, Nicholas L.82464a67-4de0-44ac-bd39-132cb2e730e6300de Pablo, Juan J.df6b6eaa-517b-468f-8930-8bbb1278c49a3002019-06-25T21:10:45Z2019-06-25T21:10:45Z2008https://repositorio.unal.edu.co/handle/unal/23014http://bdigital.unal.edu.co/14049/We investigate the relaxation of two line defects of opposite strength in a confined nematic liquidcrystal by solving the coupled tensor order parameter evolution and momentum balance equations in three dimensions. The inclusion of hydrodynamic interactions causes the defects to move at different velocities and slows the overall relaxation process, but this effect is suppressed by increasing the degree of confinement. The most notable flow features that develop in the system are large vortices that surround and follow the defects as they approach each other.application/pdfspaUniversidad Nacional de Colombia Sede Medellínhttp://revistas.unal.edu.co/index.php/dyna/article/view/1779Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaDyna; Vol. 75, núm. 156 (2008); 185-193 DYNA; Vol. 75, núm. 156 (2008); 185-193 2346-2183 0012-7353Gettelfinger, Brian T. and Hung, Fransisco R. and Hernandez Ortiz, Juan P. and Guzman, Orlando and Rey, Alejandro D. and Abbott, Nicholas L. and de Pablo, Juan J. (2008) Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions. Dyna; Vol. 75, núm. 156 (2008); 185-193 DYNA; Vol. 75, núm. 156 (2008); 185-193 2346-2183 0012-7353 .Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactionsArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTliquid crystaldefect relaxationconfinement and hydrodynamic interactions.ORIGINAL1779-23866-1-PB.htmtext/html31726https://repositorio.unal.edu.co/bitstream/unal/23014/1/1779-23866-1-PB.htm846b5c5c330fa0c24f2989a4ad9a1881MD511779-7732-1-PB.pdfapplication/pdf539718https://repositorio.unal.edu.co/bitstream/unal/23014/2/1779-7732-1-PB.pdf71b1e02a00f8057ce36abc9ff91d3f58MD52THUMBNAIL1779-7732-1-PB.pdf.jpg1779-7732-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8113https://repositorio.unal.edu.co/bitstream/unal/23014/3/1779-7732-1-PB.pdf.jpg05cc7e8ffa4846fa88ea913d6f873124MD53unal/23014oai:repositorio.unal.edu.co:unal/230142022-10-17 23:02:39.356Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions
title Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions
spellingShingle Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions
liquid crystal
defect relaxation
confinement and hydrodynamic interactions.
title_short Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions
title_full Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions
title_fullStr Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions
title_full_unstemmed Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions
title_sort Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions
dc.creator.fl_str_mv Gettelfinger, Brian T.
Hung, Fransisco R.
Hernandez Ortiz, Juan P.
Guzman, Orlando
Rey, Alejandro D.
Abbott, Nicholas L.
de Pablo, Juan J.
dc.contributor.author.spa.fl_str_mv Gettelfinger, Brian T.
Hung, Fransisco R.
Hernandez Ortiz, Juan P.
Guzman, Orlando
Rey, Alejandro D.
Abbott, Nicholas L.
de Pablo, Juan J.
dc.subject.proposal.spa.fl_str_mv liquid crystal
defect relaxation
confinement and hydrodynamic interactions.
topic liquid crystal
defect relaxation
confinement and hydrodynamic interactions.
description We investigate the relaxation of two line defects of opposite strength in a confined nematic liquidcrystal by solving the coupled tensor order parameter evolution and momentum balance equations in three dimensions. The inclusion of hydrodynamic interactions causes the defects to move at different velocities and slows the overall relaxation process, but this effect is suppressed by increasing the degree of confinement. The most notable flow features that develop in the system are large vortices that surround and follow the defects as they approach each other.
publishDate 2008
dc.date.issued.spa.fl_str_mv 2008
dc.date.accessioned.spa.fl_str_mv 2019-06-25T21:10:45Z
dc.date.available.spa.fl_str_mv 2019-06-25T21:10:45Z
dc.type.spa.fl_str_mv Artículo de revista
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url https://repositorio.unal.edu.co/handle/unal/23014
http://bdigital.unal.edu.co/14049/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv http://revistas.unal.edu.co/index.php/dyna/article/view/1779
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Dyna
Dyna
dc.relation.ispartofseries.none.fl_str_mv Dyna; Vol. 75, núm. 156 (2008); 185-193 DYNA; Vol. 75, núm. 156 (2008); 185-193 2346-2183 0012-7353
dc.relation.references.spa.fl_str_mv Gettelfinger, Brian T. and Hung, Fransisco R. and Hernandez Ortiz, Juan P. and Guzman, Orlando and Rey, Alejandro D. and Abbott, Nicholas L. and de Pablo, Juan J. (2008) Liquid crystal relaxation in three dimensions: the effect of hydrodynamic interactions. Dyna; Vol. 75, núm. 156 (2008); 185-193 DYNA; Vol. 75, núm. 156 (2008); 185-193 2346-2183 0012-7353 .
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
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dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
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dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia Sede Medellín
institution Universidad Nacional de Colombia
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