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Multi-component Mixture

The multiComponentMixture model describes a single phase mixture that is defined using individual species.

Usage​

The multiComponentMixture model is specified in multiple parts. Firstly, the mixture is set in the top-level thermoType dictionary:

thermoType
{
    mixture         multiComponentMixture;
    ...
}

Secondly, the list of participating species must then be defined:

species         (<list-of-species>);

For example, to set nitrogen (N2) and water (H2O):

species         (N2 H2O);

Thirdly, each specie must be defined in dictionary format, where the name of each dictionary is set to each specie name, e.g. following the previous example with N2 and H2O:

N2
{
    specie
    {
        <...>
    }
    equationOfState
    {
        <...>
    }
    thermodynamics
    {
        <...>
    }
    transport
    {
        <...>
    }
}

H2O
{
    specie
    {
        <...>
    }
    equationOfState
    {
        <...>
    }
    thermodynamics
    {
        <...>
    }
    transport
    {
        <...>
    }
}

where <...> entries depend on the top-level thermoType options detailed earlier.

Initial conditions​

Finally, the user must supply initial fields for each species in the initial time directories with appropriate field values and boundary conditions, e.g.

<case>/0/N2
<case>/0/H2O

If multiple species are to be defined using the identical initial conditions, the Ydefault field can be employed to provide generic description, i.e. using

<case>/0/Ydefault

all species that are not defined will be set according to the Ydefault entries.

Further information​

Source code

Example usage: