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    • Henry Weller's avatar
      combustionModels::EDC: New Eddy Dissipation Concept (EDC) turbulent combustion model · ad825903
      Henry Weller authored
      including support for TDAC and ISAT for efficient chemistry calculation.
      
      Description
          Eddy Dissipation Concept (EDC) turbulent combustion model.
      
          This model considers that the reaction occurs in the regions of the flow
          where the dissipation of turbulence kinetic energy takes place (fine
          structures). The mass fraction of the fine structures and the mean residence
          time are provided by an energy cascade model.
      
          There are many versions and developments of the EDC model, 4 of which are
          currently supported in this implementation: v1981, v1996, v2005 and
          v2016.  The model variant is selected using the optional \c version entry in
          the \c EDCCoeffs dictionary, \eg
      
          \verbatim
              EDCCoeffs
              {
                  version v2016;
              }
          \endverbatim
      
          The default version is \c v2015 if the \c version entry is not specified.
      
          Model versions and references:
          \verbatim
              Version v2005:
      
                  Cgamma = 2.1377
                  Ctau = 0.4083
                  kappa = gammaL^exp1 / (1 - gammaL^exp2),
      
                  where exp1 = 2, and exp2 = 2.
      
                  Magnussen, B. F. (2005, June).
                  The Eddy Dissipation Concept -
                  A Bridge Between Science and Technology.
                  In ECCOMAS thematic conference on computational combustion
                  (pp. 21-24).
      
              Version v1981:
      
                  Changes coefficients exp1 = 3 and exp2 = 3
      
                  Magnussen, B. (1981, January).
                  On the structure of turbulence and a generalized
                  eddy dissipation concept for chemical reaction in turbulent flow.
                  In 19th Aerospace Sciences Meeting (p. 42).
      
              Version v1996:
      
                  Changes coefficients exp1 = 2 and exp2 = 3
      
                  Gran, I. R., & Magnussen, B. F. (1996).
                  A numerical study of a bluff-body stabilized diffusion flame.
                  Part 2. Influence of combustion modeling and finite-rate chemistry.
                  Combustion Science and Technology, 119(1-6), 191-217.
      
              Version v2016:
      
                  Use local constants computed from the turbulent Da and Re numbers.
      
                  Parente, A., Malik, M. R., Contino, F., Cuoci, A., & Dally, B. B.
                  (2016).
                  Extension of the Eddy Dissipation Concept for
                  turbulence/chemistry interactions to MILD combustion.
                  Fuel, 163, 98-111.
          \endverbatim
      
      Tutorials cases provided: reactingFoam/RAS/DLR_A_LTS, reactingFoam/RAS/SandiaD_LTS.
      
      This codes was developed and contributed by
      
          Zhiyi Li
          Alessandro Parente
          Francesco Contino
          from BURN Research Group
      
      and updated and tested for release by
      
          Henry G. Weller
          CFD Direct Ltd.
      ad825903
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