AGATH - a flexible flamelet library in modern Fortran

AGATH is a flamelet solver library similar to other known libraries such as CHEMKIN or Cantera. The code has been developed at EM2C since 2012. The code has been validated and used in multiple theses to obtain laminar flame solutions, compute evaporation or implement detailed thermodynamics and transport properties in a CFD solver along with chemistry. A non-exhaustive list of available solvers is homogeneous reactors, detonation, steady and unsteady counterflow flames in spatial or mixture fraction space, and premixed flames.

AGATH contains zero- and one-dimensional solvers and evaluates thermodynamic and transport properties and chemical sources terms appearing in the Navier Stokes equations, implementing various kinetics and transport descriptions. It focuses on flexibility for the developer and user side to compute canonical flame configurations with different modeling approaches seamlessly. For example, thermodynamics can be described with constant properties, NASA polynomials, AVBP thermodynamics, or tabulated chemistry. The other solvers available with the AGATH library rely on similar flexibility for the kinetics and transport description.

The library relies on modern Fortran and the object-oriented paradigm. For example, the solver flexibility allows easy manipulation of objects in uncertainty quantification studies. The ability to numerically solve one-dimensional sets of partial differential equations involving convection, diffusion, and reaction is also used to provide wall models where the Thin Boundary Layer Equations are solved.

AGATH in one slide The source code and wiki can be found at https://gitlab-research.centralesupelec.fr/commcomb/agath for authorized users.