Transfer of thermal fluctuations through the building partition formed by periodic composite material

The paper presents examples of thermal fluctuations imposed on the average physical field, which are intensively suppressed by a building partition formed of a periodic two-phase composite. This intense attenuation applies not only to exponential attenuation, until recently identified with the so-...

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Main Authors: Dorota Kula, Łukasz Wodzyński
Format: Article
Language:English
Published: Warsaw University of Life Sciences Press 2020-05-01
Series:Acta Scientiarum Polonorum. Architectura
Subjects:
Online Access:http://www.architectura.actapol.net/tom19/zeszyt1/19_1_21.pdf
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author Dorota Kula
Łukasz Wodzyński
author_facet Dorota Kula
Łukasz Wodzyński
author_sort Dorota Kula
collection DOAJ
description The paper presents examples of thermal fluctuations imposed on the average physical field, which are intensively suppressed by a building partition formed of a periodic two-phase composite. This intense attenuation applies not only to exponential attenuation, until recently identified with the so-called composite boundary effect behaviour, but also mute oscillatory damping, which next to exponential damping, most often accompanies the boundary effect behaviour. The considerations were made using the parabolic equation of thermal conductivity as a starting point leading to the equivalent reformulation, but they can be easily transferred, e.g. to the area of linear elasticity and other physical phenomena occurring in composites. Considerations of this paper can be taken into account in the design of rooms that should effectively protect precision electronic devices against the harmful effects of external fluctuations in physical fields.
format Article
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language English
publishDate 2020-05-01
publisher Warsaw University of Life Sciences Press
record_format Article
series Acta Scientiarum Polonorum. Architectura
spelling doaj-art-c60a4b44157249c385ce2300fc5a4e152025-08-20T02:18:38ZengWarsaw University of Life Sciences PressActa Scientiarum Polonorum. Architectura1644-06332544-17602020-05-01191213010.22630/ASPA.2020.19.1.3Transfer of thermal fluctuations through the building partition formed by periodic composite materialDorota Kula0https://orcid.org/0000-0002-7445-2822Łukasz Wodzyński1https://orcid.org/0000-0002-4924-5784Institute of Civil Engineering, Warsaw University of Life Sciences – SGGWInstitute of Civil Engineering, Warsaw University of Life Sciences – SGGWThe paper presents examples of thermal fluctuations imposed on the average physical field, which are intensively suppressed by a building partition formed of a periodic two-phase composite. This intense attenuation applies not only to exponential attenuation, until recently identified with the so-called composite boundary effect behaviour, but also mute oscillatory damping, which next to exponential damping, most often accompanies the boundary effect behaviour. The considerations were made using the parabolic equation of thermal conductivity as a starting point leading to the equivalent reformulation, but they can be easily transferred, e.g. to the area of linear elasticity and other physical phenomena occurring in composites. Considerations of this paper can be taken into account in the design of rooms that should effectively protect precision electronic devices against the harmful effects of external fluctuations in physical fields.http://www.architectura.actapol.net/tom19/zeszyt1/19_1_21.pdfeffective heat conductionboundary effect behaviourbuilding partitionaverage temperature field
spellingShingle Dorota Kula
Łukasz Wodzyński
Transfer of thermal fluctuations through the building partition formed by periodic composite material
Acta Scientiarum Polonorum. Architectura
effective heat conduction
boundary effect behaviour
building partition
average temperature field
title Transfer of thermal fluctuations through the building partition formed by periodic composite material
title_full Transfer of thermal fluctuations through the building partition formed by periodic composite material
title_fullStr Transfer of thermal fluctuations through the building partition formed by periodic composite material
title_full_unstemmed Transfer of thermal fluctuations through the building partition formed by periodic composite material
title_short Transfer of thermal fluctuations through the building partition formed by periodic composite material
title_sort transfer of thermal fluctuations through the building partition formed by periodic composite material
topic effective heat conduction
boundary effect behaviour
building partition
average temperature field
url http://www.architectura.actapol.net/tom19/zeszyt1/19_1_21.pdf
work_keys_str_mv AT dorotakula transferofthermalfluctuationsthroughthebuildingpartitionformedbyperiodiccompositematerial
AT łukaszwodzynski transferofthermalfluctuationsthroughthebuildingpartitionformedbyperiodiccompositematerial