Principal Component Analysis on a LES of a Squared Ribbed Channel

  • Soledad Le Clainche Martínez
  • Carlo Benocci
  • Alessandro Parente
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 239)

Abstract

The present paper reports on the application of Principal Component Analysis (PCA) on the flow and thermal fields generated by the large-eddy simulation (LES) of a square ribbed duct heated by a constant heat flux applied over the bottom surface of the duct. PCA allows to understand the complexity of the resulting turbulent heat transfer process, identifying the flow and thermal quantities which are most relevant to the process. Different algorithms have been employed to perform this analysis, showing high correlation between turbulent coherent structures, identified by Q − criterion, and the heat transfer quantified by the non-dimensional magnitude Enhancement Factor (EF), both identified as Principal Variables (PV) of the process.

Keywords

Conjugate heat transfer Large Eddy Simulation Principal Component Analysis Flow topology 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Soledad Le Clainche Martínez
    • 1
  • Carlo Benocci
    • 2
  • Alessandro Parente
    • 3
  1. 1.School of AeronauticsUniversidad Politécnica de MadridMadridSpain
  2. 2.Department of Environmental and Applied Fluid Dynamicsvon Karman Institute for Fluid DynamicsSint-Genesius-RodeBelgium
  3. 3.Service d’Aéro-Thermo-MécaniqueUniversité Libre de BruxellesBrusselsBelgium

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