VERTICAL MIGRATION OF PARTICLES IN FRONT OF A MOVING FREEZING PLANE
A principle of particle segregation by freezing is presented. It is demonstrated experimentally by using a transparent freezing cabinet in which a sample of distilled water freezes from the bottom upward. In this way the freezing front line travels vertically and the particles are carried against gr...
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ftdtic:AD0295985 2023-05-15T17:57:43+02:00 VERTICAL MIGRATION OF PARTICLES IN FRONT OF A MOVING FREEZING PLANE CORTE, ARTURO E. COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH 1963-01 text/html http://www.dtic.mil/docs/citations/AD0295985 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0295985 en eng http://www.dtic.mil/docs/citations/AD0295985 Approved for public release; distribution is unlimited. DTIC AND NTIS Meteorology *PARTICLES *SOILS SEPARATION CRYOGENICS FREEZING MOTION WATER Text 1963 ftdtic 2016-02-22T16:17:15Z A principle of particle segregation by freezing is presented. It is demonstrated experimentally by using a transparent freezing cabinet in which a sample of distilled water freezes from the bottom upward. In this way the freezing front line travels vertically and the particles are carried against gravity. By using the same material with different shapes (glass beads and broken quartz or glass) it is demonstrated that an important factor in particle migration is the shape of the particle or its contact area with the interface. By testing other materials with different shapes and sizes, it is demonstrated that another important factor is particle size and rate of freezing. It is suggested that, for determining frost behavior of soils in permafrost regions, freezing from the bottom upward is a more reliable test than freezing from the top down. The implication of this principle in engineering and studies of soil genesis in cold regions is emphasized. Text permafrost Defense Technical Information Center: DTIC Technical Reports database |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Meteorology *PARTICLES *SOILS SEPARATION CRYOGENICS FREEZING MOTION WATER |
spellingShingle |
Meteorology *PARTICLES *SOILS SEPARATION CRYOGENICS FREEZING MOTION WATER CORTE, ARTURO E. VERTICAL MIGRATION OF PARTICLES IN FRONT OF A MOVING FREEZING PLANE |
topic_facet |
Meteorology *PARTICLES *SOILS SEPARATION CRYOGENICS FREEZING MOTION WATER |
description |
A principle of particle segregation by freezing is presented. It is demonstrated experimentally by using a transparent freezing cabinet in which a sample of distilled water freezes from the bottom upward. In this way the freezing front line travels vertically and the particles are carried against gravity. By using the same material with different shapes (glass beads and broken quartz or glass) it is demonstrated that an important factor in particle migration is the shape of the particle or its contact area with the interface. By testing other materials with different shapes and sizes, it is demonstrated that another important factor is particle size and rate of freezing. It is suggested that, for determining frost behavior of soils in permafrost regions, freezing from the bottom upward is a more reliable test than freezing from the top down. The implication of this principle in engineering and studies of soil genesis in cold regions is emphasized. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH |
format |
Text |
author |
CORTE, ARTURO E. |
author_facet |
CORTE, ARTURO E. |
author_sort |
CORTE, ARTURO E. |
title |
VERTICAL MIGRATION OF PARTICLES IN FRONT OF A MOVING FREEZING PLANE |
title_short |
VERTICAL MIGRATION OF PARTICLES IN FRONT OF A MOVING FREEZING PLANE |
title_full |
VERTICAL MIGRATION OF PARTICLES IN FRONT OF A MOVING FREEZING PLANE |
title_fullStr |
VERTICAL MIGRATION OF PARTICLES IN FRONT OF A MOVING FREEZING PLANE |
title_full_unstemmed |
VERTICAL MIGRATION OF PARTICLES IN FRONT OF A MOVING FREEZING PLANE |
title_sort |
vertical migration of particles in front of a moving freezing plane |
publishDate |
1963 |
url |
http://www.dtic.mil/docs/citations/AD0295985 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0295985 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0295985 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766166210692513792 |