1 Ocak 2019 Dergi makalesi Açık Erişim

Tepe, Ahmet Umit; Arslan, Kamil; Yetisken, Yasar; Uysal, Unal

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/73025</identifier>
  <creators>
    <creator>
      <creatorName>Tepe, Ahmet Umit</creatorName>
      <givenName>Ahmet Umit</givenName>
      <familyName>Tepe</familyName>
      <affiliation>Kastamonu Univ, Abana Sabahat Mesut Yilmaz Vocat Sch, TR-37970 Kastamonu, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Arslan, Kamil</creatorName>
      <givenName>Kamil</givenName>
      <familyName>Arslan</familyName>
    </creator>
    <creator>
      <creatorName>Yetisken, Yasar</creatorName>
      <givenName>Yasar</givenName>
      <familyName>Yetisken</familyName>
    </creator>
    <creator>
      <creatorName>Uysal, Unal</creatorName>
      <givenName>Unal</givenName>
      <familyName>Uysal</familyName>
    </creator>
  </creators>
  <titles>
    <title>Effects Of Extended Jet Holes To Heat Transfer And Flow Characteristics Of The Jet Impingement Cooling</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2019</publicationYear>
  <dates>
    <date dateType="Issued">2019-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/73025</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1115/1.4043893</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">In this study, effects of extended jet holes to heat transfer and flow characteristics of jet impingement cooling were numerically investigated. Cross-flow in the impinging jet cooling adversely affects the heat transfer on the target surface. The main purpose of this study is to reduce the negative effect of cross-flow on heat transfer by extending jet holes toward the target surface with nozzles. This study has been conducted under turbulent flow condition (15,000 &amp;lt;= Re &amp;lt;= 45,000). The surface of the turbine blade, which is the target surface, has been modeled as a flat plate. The effect of the ribs, placed on the target surface, on the heat transfer has been also investigated, and the results were compared with the flat surface. The parameters such as average and local Nusselt numbers on the target surface, flow characteristics, and compressor power have been examined in detail. It was obtained from the numerical results that the average Nusselt number increases with decreasing the gap between the target surface and the nozzle. In addition, the higher average Nusselt number was obtained on the flat surface than the ribbed surface. The lowest compressor power was achieved in the 5Dj nozzle gap for the flat surface and in the 4Dj nozzle gap for the ribbed surface.</description>
  </descriptions>
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