Criteria for Ceiling Slot-Ventilated Agricultural Enclosures: Non-Isothermal

dc.contributor.author Yu, Hsin
dc.contributor.author Hoff, Steven
dc.contributor.author Hoff, Steven
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T10:13:33.000
dc.date.accessioned 2020-06-29T22:39:08Z
dc.date.available 2020-06-29T22:39:08Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2002
dc.date.embargo 2013-04-30
dc.date.issued 2002-01-01
dc.description.abstract <p>Experiments using two scale–models were conducted to study non–isothermal airflow similarity in a ceiling slot–ventilated agricultural enclosure. The main criteria used for determining similarity were airflow pattern similarity, occupied zone airspeed, and temperature similarity. For agricultural ventilation issues, these were projected to be paramount to a successful scale–model study. The current study, based on past agricultural ventilation studies, focused attention on the Archimedes number (Ar) and Momentum ratio (Rm) as the similitude criteria for non–isothermal airflow. Results indicated that Ar is the appropriate similitude criteria for non–isothermal airflow patterns under strong buoyancy–affected conditions where Ar > 0.015. With increasing airflow or decreasing temperature differences, resulting in a lower buoyancy–affected air–jet, Rm with a consistent overall temperature differential was determined to be the appropriate similitude criteria. This study focused on practical considerations for conducting scale mode studies such as scale–model conditions measured in the animal occupied zone and it’s relation to expected prototype behavior.</p>
dc.description.comments <p>This article is from <em>Transactions of the ASABE </em>45, no. 1 (2002): <a href="http://elibrary.asabe.org/abstract.asp?aid=7872&t=3&dabs=Y&redir=&redirType=" target="_blank">201–214</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/353/
dc.identifier.articleid 1632
dc.identifier.contextkey 4089802
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/353
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1110
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/353/2002_YuH_CriteriaCeilingSlotVentilated.pdf|||Fri Jan 14 23:44:51 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Non–isothermal
dc.subject.keywords Archimedes number
dc.subject.keywords Momentum ratio
dc.subject.keywords Airflow
dc.subject.keywords Slot–ventilated
dc.title Criteria for Ceiling Slot-Ventilated Agricultural Enclosures: Non-Isothermal
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 98b46d48-66a2-4458-9b42-8c4aa050664d
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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