Journal article Open Access

An Experimental Study of the Aeroacoustic Properties of a Propeller in Energy Harvesting Configuration

Paolo Candeloro; Edoardo Martellini; Robert Nederlof; Tomas Sinnige; Tiziano Pagliaroli


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  <identifier identifierType="URL">https://zenodo.org/record/6821294</identifier>
  <creators>
    <creator>
      <creatorName>Paolo Candeloro</creatorName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-1719-8645</nameIdentifier>
      <affiliation>Engineering Department, Universitá degli studi Niccoló Cusano, Via Don Carlo Gnocchi 3, 00166 Rome, Italy</affiliation>
    </creator>
    <creator>
      <creatorName>Edoardo Martellini</creatorName>
      <affiliation>Engineering Department, Universitá degli studi Niccoló Cusano, Via Don Carlo Gnocchi 3, 00166 Rome, Italy</affiliation>
    </creator>
    <creator>
      <creatorName>Robert Nederlof</creatorName>
      <affiliation>Flow Physics and Technology Department, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The Netherlands</affiliation>
    </creator>
    <creator>
      <creatorName>Tomas Sinnige</creatorName>
      <affiliation>Flow Physics and Technology Department, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The Netherlands</affiliation>
    </creator>
    <creator>
      <creatorName>Tiziano Pagliaroli</creatorName>
      <affiliation>Engineering Department, Universitá degli studi Niccoló Cusano, Via Don Carlo Gnocchi 3, 00166 Rome, Italy</affiliation>
    </creator>
  </creators>
  <titles>
    <title>An Experimental Study of the Aeroacoustic Properties of a Propeller in Energy Harvesting Configuration</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2022</publicationYear>
  <subjects>
    <subject>energy harvesting; rotor noise; proper orthogonal decomposition; wavelet transform</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2022-06-27</date>
  </dates>
  <resourceType resourceTypeGeneral="JournalArticle"/>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/6821294</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.3390/fluids7070217</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://zenodo.org/communities/futprint50h2020project</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;The aim of the present manuscript is to investigate the noise footprint of an isolated propeller in different flight configurations for the propulsion of a hybrid-electric aircraft. Experimental tests were performed at the Low-Turbulence Tunnel located at Delft University of Technology with a powered propeller model and flush-mounted microphones in the tunnel floor. The propeller was investigated at different advance ratios in order to study the noise impact in propulsive and energy harvesting configurations. For brevity, this work only reports the results at the conditions of maximum efficiency in both propulsive and energy harvesting regimes, for a fixed blade pitch setting. Comparing these two configurations, a frequency-domain analysis reveals a significant modification in the nature of the noise source. In the propulsive configuration, most of the energy is related to the tonal noise component, as expected for an isolated propeller; however, in energy harvesting configuration, the broadband noise component increases significantly compared to the propulsive mode. A more detailed analysis requires separation of the two noise components and, for this purpose, an innovative decomposition strategy based on proper orthogonal decomposition (POD) has been defined. This novel technique shows promising results; both in the time and in the Fourier domains the two reconstructed components perfectly describe the original signal and no phase delays or other mathematical artifices are introduced. In this sense, it can represent a very powerful tool to identify noise sources and, at the same time, to define a proper control strategy aimed at noise mitigation.&lt;/p&gt;</description>
  </descriptions>
  <fundingReferences>
    <fundingReference>
      <funderName>European Commission</funderName>
      <funderIdentifier funderIdentifierType="Crossref Funder ID">10.13039/100010661</funderIdentifier>
      <awardNumber awardURI="info:eu-repo/grantAgreement/EC/Horizon 2020 Framework Programme - Research and Innovation action/875551/">875551</awardNumber>
      <awardTitle>Future propulsion and integration: towards a hybrid-electric 50-seat regional aircraft</awardTitle>
    </fundingReference>
  </fundingReferences>
</resource>
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