<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2071-0054</journal-id>
<journal-title><![CDATA[Revista Ciencias Técnicas Agropecuarias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cie Téc Agr]]></abbrev-journal-title>
<issn>2071-0054</issn>
<publisher>
<publisher-name><![CDATA[Universidad Agraria de La Habana]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2071-00542019000300007</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Determination of the Thermal Behavior of a Colombian Hanging Greenhouse Applying CFD Simulation]]></article-title>
<article-title xml:lang="es"><![CDATA[Determinación del comportamiento térmico de un invernadero colgante colombiano aplicando simulación CFD]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villagrán-Munar]]></surname>
<given-names><![CDATA[Edwin Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bojacá-Aldana]]></surname>
<given-names><![CDATA[Carlos Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Jorge Tadeo Lozano Facultad de Ciencias Naturales e Ingeniería ]]></institution>
<addr-line><![CDATA[ Bogotá]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>28</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2071-00542019000300007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2071-00542019000300007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2071-00542019000300007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In Colombia the production of flowers is carried out in different types of greenhouses with a common feature and it is the passive type of climate control. At present, the knowledge on the climatic performance of these structures is scarce. The objective of this work was to evaluate the thermal behavior of a suspension-type chapel greenhouse under diurnal and nocturnal climate conditions under the prevailing meteorological conditions of Bogotá savannah. The evaluation was made by numerical simulations using computational fluid dynamics (CFD) applied to a greenhouse dedicated to the production of rose (Rosa sp.). This methodological approach allowed obtaining the thermal distribution patterns inside the greenhouse. It was found that for the meteorological conditions evaluated, the greenhouse generates inadequate thermal conditions for the crop development during the night period, where the value of the temperature obtained was below the recommended minimum of 15°C. The validation of the CFD model was carried out by comparing the results of the simulations and the temperatures recorded in the real prototype of the greenhouse, obtaining an adequate degree of adjustment between the simulated and measured values and with a similar trend during the daily 24 hours.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En Colombia la producción de flores se lleva a cabo en invernaderos de diferentes tipologías con una característica en común y es el control de clima de tipo pasivo. En la actualidad el conocimiento sobre el desempeño climático de estas estructuras es escaso. El objetivo del trabajo consistió en evaluar el comportamiento térmico de un invernadero capilla tipo colgante en condiciones de clima diurno y nocturno bajo las condiciones meteorológicas predominantes en la sabana de Bogotá. La evaluación se realizó mediante simulaciones numéricas empleando la dinámica de fluidos computacional (CFD) aplicada a un invernadero dedicado a la producción de rosa (Rosa sp.). Este enfoque metodológico permitió obtener los patrones de distribución térmica en el interior del invernadero, encontrando que para las condiciones meteorológicas evaluadas el invernadero genera unas condiciones térmicas inadecuadas para el desarrollo del cultivo durante el periodo nocturno donde el valor de la temperatura obtenido estuvo por debajo del mínimo recomendado de 15°C. La validación del modelo CFD se realizó comparando los resultados de las simulaciones y las temperaturas registradas en el prototipo real del invernadero, obteniendo un grado de ajuste adecuado entre los valores simulados y medidos y con una tendencia similar durante las 24 horas del día.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[computational fluid dynamics]]></kwd>
<kwd lng="en"><![CDATA[temperature]]></kwd>
<kwd lng="en"><![CDATA[simulation]]></kwd>
<kwd lng="en"><![CDATA[diurnal period]]></kwd>
<kwd lng="en"><![CDATA[nocturnal period]]></kwd>
<kwd lng="es"><![CDATA[dinámica de fluidos computacional]]></kwd>
<kwd lng="es"><![CDATA[temperatura]]></kwd>
<kwd lng="es"><![CDATA[simulación]]></kwd>
<kwd lng="es"><![CDATA[periodo diurno]]></kwd>
<kwd lng="es"><![CDATA[periodo nocturno]]></kwd>
</kwd-group>
</article-meta>
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