Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals

Autores
Burgesser, Rodrigo Exequiel; Castellano, Nesvit Edit
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
New experimental measurements of the falling velocity, size and orientation of individual hexagonal plate-like ice crystals are reported. The measurements were conducted at three different temperatures: −13, −16 and −20 °C. The diameter of the ice crystals measured in the experiments were between 50 μm and 250 μm, a size range which is in agreement with the size found in natural clouds. In this range, ice crystals show a random orientation during free fall and a falling velocity which increases with size. Results show that the fall velocity is insensitive to the temperature at which the ice crystals grow for the temperatures used in this study. An empirical power-law between the Best and Reynolds numbers is presented using the capacitance as characteristic length and an estimation of the ice crystal mass. Despite the dispersion of the experimental data, the Best–Reynolds relationship found seems to be similar to the relationship for falling spheres in Stokes flow using the capacitance as the hydrodynamic radius. The fall velocities of hexagonal and columnar ice crystals were compared. The columnar ice crystals show a velocity larger than that of hexagonal ice crystals with the same value of capacitance. However, both crystalline habits show a unique empirical Be–Re relationship.
Fil: Burgesser, Rodrigo Exequiel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Castellano, Nesvit Edit. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Materia
EXPERIMENTAL DATA
FALL VELOCITY
HEXAGONAL PLANAR ICE CRYSTALS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/90476
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/90476
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystalsBurgesser, Rodrigo ExequielCastellano, Nesvit EditEXPERIMENTAL DATAFALL VELOCITYHEXAGONAL PLANAR ICE CRYSTALShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1New experimental measurements of the falling velocity, size and orientation of individual hexagonal plate-like ice crystals are reported. The measurements were conducted at three different temperatures: −13, −16 and −20 °C. The diameter of the ice crystals measured in the experiments were between 50 μm and 250 μm, a size range which is in agreement with the size found in natural clouds. In this range, ice crystals show a random orientation during free fall and a falling velocity which increases with size. Results show that the fall velocity is insensitive to the temperature at which the ice crystals grow for the temperatures used in this study. An empirical power-law between the Best and Reynolds numbers is presented using the capacitance as characteristic length and an estimation of the ice crystal mass. Despite the dispersion of the experimental data, the Best–Reynolds relationship found seems to be similar to the relationship for falling spheres in Stokes flow using the capacitance as the hydrodynamic radius. The fall velocities of hexagonal and columnar ice crystals were compared. The columnar ice crystals show a velocity larger than that of hexagonal ice crystals with the same value of capacitance. However, both crystalline habits show a unique empirical Be–Re relationship.Fil: Burgesser, Rodrigo Exequiel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Castellano, Nesvit Edit. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaJohn Wiley & Sons Ltd2018-07-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/90476Burgesser, Rodrigo Exequiel; Castellano, Nesvit Edit; Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals; John Wiley & Sons Ltd; Quarterly Journal of the Royal Meteorological Society; 144; 714; 23-7-2018; 1591-15970035-90091477-870XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/qj.3321info:eu-repo/semantics/altIdentifier/doi/10.1002/qj.3321info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:03:56Zoai:ri.conicet.gov.ar:11336/90476instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:03:56.652CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals
title Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals
spellingShingle Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals
Burgesser, Rodrigo Exequiel
EXPERIMENTAL DATA
FALL VELOCITY
HEXAGONAL PLANAR ICE CRYSTALS
title_short Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals
title_full Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals
title_fullStr Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals
title_full_unstemmed Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals
title_sort Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals
dc.creator.none.fl_str_mv Burgesser, Rodrigo Exequiel
Castellano, Nesvit Edit
author Burgesser, Rodrigo Exequiel
author_facet Burgesser, Rodrigo Exequiel
Castellano, Nesvit Edit
author_role author
author2 Castellano, Nesvit Edit
author2_role author
dc.subject.none.fl_str_mv EXPERIMENTAL DATA
FALL VELOCITY
HEXAGONAL PLANAR ICE CRYSTALS
topic EXPERIMENTAL DATA
FALL VELOCITY
HEXAGONAL PLANAR ICE CRYSTALS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv New experimental measurements of the falling velocity, size and orientation of individual hexagonal plate-like ice crystals are reported. The measurements were conducted at three different temperatures: −13, −16 and −20 °C. The diameter of the ice crystals measured in the experiments were between 50 μm and 250 μm, a size range which is in agreement with the size found in natural clouds. In this range, ice crystals show a random orientation during free fall and a falling velocity which increases with size. Results show that the fall velocity is insensitive to the temperature at which the ice crystals grow for the temperatures used in this study. An empirical power-law between the Best and Reynolds numbers is presented using the capacitance as characteristic length and an estimation of the ice crystal mass. Despite the dispersion of the experimental data, the Best–Reynolds relationship found seems to be similar to the relationship for falling spheres in Stokes flow using the capacitance as the hydrodynamic radius. The fall velocities of hexagonal and columnar ice crystals were compared. The columnar ice crystals show a velocity larger than that of hexagonal ice crystals with the same value of capacitance. However, both crystalline habits show a unique empirical Be–Re relationship.
Fil: Burgesser, Rodrigo Exequiel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Castellano, Nesvit Edit. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
description New experimental measurements of the falling velocity, size and orientation of individual hexagonal plate-like ice crystals are reported. The measurements were conducted at three different temperatures: −13, −16 and −20 °C. The diameter of the ice crystals measured in the experiments were between 50 μm and 250 μm, a size range which is in agreement with the size found in natural clouds. In this range, ice crystals show a random orientation during free fall and a falling velocity which increases with size. Results show that the fall velocity is insensitive to the temperature at which the ice crystals grow for the temperatures used in this study. An empirical power-law between the Best and Reynolds numbers is presented using the capacitance as characteristic length and an estimation of the ice crystal mass. Despite the dispersion of the experimental data, the Best–Reynolds relationship found seems to be similar to the relationship for falling spheres in Stokes flow using the capacitance as the hydrodynamic radius. The fall velocities of hexagonal and columnar ice crystals were compared. The columnar ice crystals show a velocity larger than that of hexagonal ice crystals with the same value of capacitance. However, both crystalline habits show a unique empirical Be–Re relationship.
publishDate 2018
dc.date.none.fl_str_mv 2018-07-23
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/90476
Burgesser, Rodrigo Exequiel; Castellano, Nesvit Edit; Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals; John Wiley & Sons Ltd; Quarterly Journal of the Royal Meteorological Society; 144; 714; 23-7-2018; 1591-1597
0035-9009
1477-870X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/90476
identifier_str_mv Burgesser, Rodrigo Exequiel; Castellano, Nesvit Edit; Laboratory measurements of the sedimentation velocity of hexagonal planar ice crystals; John Wiley & Sons Ltd; Quarterly Journal of the Royal Meteorological Society; 144; 714; 23-7-2018; 1591-1597
0035-9009
1477-870X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/qj.3321
info:eu-repo/semantics/altIdentifier/doi/10.1002/qj.3321
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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