Documentation du code de simulation numérique SUNFLUIDH

This data setup is only used in the full version of sunfluidh for the simulation of multi-species gas flows under low-Mach number hypothesis. It is used to define every thermo-chemical properties of species to estimate physical properties of gas mixture such as heat capacity, thermal conductivity, transport coefficients of diffusion, …. Most of data are directly initialized with a default value that could be used by the code if these ones are not set a value specified by the user.
Data could be used or not, this depends on the context. For this reason, useless data could be omitted in the data setup.
The user must therefore ensure that every useful data are explicitly stated in the input3d.dat file unless he is sure that the default values are correct (if there is any doubt, you can check the file named “check_namelist_data.dat”).
Some examples are given here for helping the user about this namelist.

• Name of the species present in the gas mixture

• Molecular mass (mol/kg)

• Species heat capacity (J/K/kg)

• The Schmidt number is used to define the diffusion coefficient of the species from the kinematic viscosity as $D_i=Sch.\nu$. This definition is enabled only when the data “Multi_Species_Mixture_Law_for_Mass_Diffusion_Enabled = .false.” (coming from the namelist “Fluid_Properties”.