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@ARTICLE{Gauding:837113,
      author       = {Gauding, Michael and Dietzsch, Felix and Göbbert, Jens
                      Henrik and Thévenin, Dominique and Abdelsamie, Abouelmagd
                      and Hasse, Christian},
      title        = {{D}issipation element analysis of a turbulent non-premixed
                      jet flame},
      journal      = {Physics of fluids},
      volume       = {29},
      number       = {8},
      issn         = {1089-7666},
      address      = {[S.l.]},
      publisher    = {American Institute of Physics},
      reportid     = {FZJ-2017-06102},
      pages        = {085103 -},
      year         = {2017},
      abstract     = {The objective of the present work is to examine the
                      interaction between turbulent mixing and chemistry by
                      employing the method of dissipation elements in a
                      non-premixed turbulent jet flame. The method of dissipation
                      elements [L. Wang and N. Peters, J. Fluid Mech. 554,
                      457–475 (2006)] is used to perform a space-filling
                      decomposition of the turbulent jet flow into different
                      regimes conditioned on their location with respect to the
                      reaction zone. Based on the non-local structure of
                      dissipation elements, this decomposition allows us to
                      discern whether points away from stoichiometry are connected
                      through a diffusive layer with the reaction zone. In a next
                      step, a regime based statistical analysis of dissipation
                      elements is carried out by means of data obtained from a
                      direct numerical simulation. Turbulent mixing and chemical
                      reactions depend strongly on the mixture fraction gradient.
                      From a budget between strain and dissipation, the mechanism
                      for the formation and destruction of mean gradients along
                      dissipation elements is inspected. This budget reveals that
                      large gradients in the mixture fraction field occur at a
                      small but finite length scale. Finally, the inner structure
                      of dissipation elements is examined by computing statistics
                      along gradient trajectories of the mixture fraction field.
                      Thereby, the method of dissipation elements provides a
                      statistical characterization of flamelets and novel insight
                      into the interaction between chemistry and turbulence.},
      cin          = {JSC / NIC / JARA-HPC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JSC-20090406 / I:(DE-Juel1)NIC-20090406 /
                      $I:(DE-82)080012_20140620$},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511) / Symmetry Analysis and DNS of a Turbulent Plane
                      Jet $(hfg02_20161101)$},
      pid          = {G:(DE-HGF)POF3-511 / $G:(DE-Juel1)hfg02_20161101$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000409227500046},
      doi          = {10.1063/1.4991574},
      url          = {https://juser.fz-juelich.de/record/837113},
}