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@PHDTHESIS{Koch:1017527,
      author       = {Koch, Matthias},
      othercontributors = {Kneer, Reinhold and Scherer, Viktor},
      title        = {{E}ffiziente {M}odellierung der
                      {P}artikel-{S}trahlungsinteraktion von nicht-sphärischen
                      {P}artikelgruppen},
      school       = {Rheinisch-Westfälische Technische Hochschule Aachen},
      type         = {Dissertation},
      address      = {Aachen},
      publisher    = {RWTH Aachen University},
      reportid     = {RWTH-2025-07384},
      pages        = {1 Online-Ressource : Illustrationen},
      year         = {2025},
      note         = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
                      University; Dissertation, Rheinisch-Westfälische Technische
                      Hochschule Aachen, 2025},
      abstract     = {In this thesis, the interaction of electromagnetic waves
                      with particles is investigated numerically and
                      experimentally. First, single particles are considered and
                      the developed single particle model is finally used to model
                      the radiation interaction with particle groups. In addition
                      to accuracy, the focus is on the computational efficiency of
                      the model, as the finished model will be used for coupled
                      CFD/radiation simulations of large-scale combustors. In
                      addition to the composition, the external shape is
                      particularly important for the radiation behavior of
                      individual particles. Based on Mie theory, which represents
                      an analytical solution of the radiation interaction with
                      homogeneous spheres, the single particle model is extended
                      for prolate ellipsoids. In addition to the complex index of
                      refraction of the material, the wavelength of the incoming
                      electromagnetic wave and the diameter of the projected area,
                      the axis ratio and the orientation of the particles are used
                      as additional input parameters. For the derivation and
                      validation, the discrete-dipole-approximation is used. For
                      direct application, it requires too much memory and is too
                      slow. The radiation exchange of particle groups is then
                      investigated applying the developed single particle model.
                      For later application, it is inefficient to represent each
                      individual particle. Instead, a black box model is developed
                      that calculates the absorption and scattering behavior of
                      the group based on particle size and particle orientation
                      distribution.},
      cin          = {412610},
      ddc          = {620},
      cid          = {$I:(DE-82)412610_20140620$},
      pnm          = {TRR 129: Oxyflame - Entwicklung von Methoden und Modellen
                      zur Beschreibung der Reaktion fester Brennstoffe in einer
                      Oxyfuel-Atmosphäre (215035359) / DFG project
                      G:(GEPRIS)240984532 - Modellierung der
                      Strahlungseigenschaften von pulverisierten Biomassepartikeln
                      bei der Oxy-Fuel-Verbrennung (C04) (240984532)},
      pid          = {G:(GEPRIS)215035359 / G:(GEPRIS)240984532},
      typ          = {PUB:(DE-HGF)11},
      doi          = {10.18154/RWTH-2025-07384},
      url          = {https://publications.rwth-aachen.de/record/1017527},
}