<?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>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2025000100106</article-id>
<article-id pub-id-type="doi">10.31349/revmexfis.71.010601</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Wind tunnel measurements of indoor air quality in a building with natural cross-ventilation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz-Calderón]]></surname>
<given-names><![CDATA[S. F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gromke]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Huelsz]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Energías Renovables ]]></institution>
<addr-line><![CDATA[Temixco Mor.]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Karlsruhe Institute of Technology Institute for Water and Environment Laboratory of Building and Environment Aerodynamics]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Germany</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Veracruzana Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[Coatzacoalcos Ver.]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Energías Renovables ]]></institution>
<addr-line><![CDATA[Temixco Mor.]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2025</year>
</pub-date>
<volume>71</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2025000100106&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2025000100106&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2025000100106&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In recent years, there has been an increase in indoor air quality studies in buildings, which examine minimum requirements to reduce the probability of respiratory disease transmission. These studies are primarily conducted in existing buildings, with fewer evaluations of generic geometry buildings in wind tunnels. These experimental studies are valuable, among other things, for validating numerical models of Computational Fluid Dynamics (CFD). This study employs the experimental technique of electron capture detection to obtain the distribution of a tracer gas throughout the interior volume of a scaled building with cross-ventilation in a modelled atmospheric boundary layer flow. The building is considered isolated (without neighbors) and features windows at the same bottom height of the windward and leeward facades. A facade porosity (the ratio of area between the window and the facade) of 10% is considered. Maintaining geometric and dynamic similarity, the results are scaled based on a building height of 2.8 m and an incident wind velocity at the building height of 0.85 m/s. Under these conditions, the values of air exchange rate I =0.0167 s&#8722;1, nominal time &#964;  n =60 s, and 60 air changes per hour (ACH) are calculated. It is anticipated that the concentration results presented in this study will be utilized in future validations of CFD models.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Natural ventilation]]></kwd>
<kwd lng="en"><![CDATA[indoor air quality]]></kwd>
<kwd lng="en"><![CDATA[wind tunnel measurements]]></kwd>
<kwd lng="en"><![CDATA[tracer gas]]></kwd>
<kwd lng="en"><![CDATA[electron capture detection]]></kwd>
</kwd-group>
</article-meta>
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