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@ARTICLE{Tokar:173217,
      author       = {Tokar, Mikhail and Koltunov, Mikhail},
      title        = {'{S}hell' approach to modeling of impurity spreading from
                      localized sources in plasma},
      journal      = {International journal of modeling, simulation, and
                      scientific computing},
      volume       = {05},
      number       = {supp01},
      issn         = {1793-9623},
      address      = {Singapore {[u.a.]},
      publisher    = {World Scientific},
      reportid     = {FZJ-2014-06628},
      pages        = {1441005},
      year         = {2014},
      abstract     = {In fusion devices, strongly localized intensive sources of
                      impurities may arise unexpectedly or can be created
                      deliberately through impurity injection. The spreading of
                      impurities from such sources is essentially
                      three-dimensional and nonstationary phenomenon involving
                      physical processes of extremely different time scales.
                      Numerical modeling of such events is still a very
                      challenging task even by using most modern computers. To
                      diminish the calculation time drastically a "shell" model
                      has been elaborated that allows to reduce equations for
                      particle, parallel momentum and energy balances of various
                      ion species to one-dimensional equations describing the time
                      evolution of radial profiles for several most characteristic
                      parameters. The assumptions of the "shell" approach are
                      verified by comparing its predictions with a numerical
                      solution of one-dimensional time-dependent transport
                      equations.},
      cin          = {IEK-4},
      ddc          = {004},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {136 - Plasma theory (POF2-136)},
      pid          = {G:(DE-HGF)POF2-136},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1142/S1793962314410050},
      url          = {https://juser.fz-juelich.de/record/173217},
}