composition_properties command
Purpose
Command for defining the properties of a composition.
Syntax
composition_properties composition_name keyword value
composition_name = name of the composition to be defined, obligatory entry (no keyword!)
Keywords:
Keyword |
Description |
|---|---|
species |
obligatory; species name list of the composition
units: [-]
|
species_massfraction |
optional; species mass fraction list of the composition (sum must be 1). mSpecies = species_massfraction * mParticle. Either species_massfraction or species_volumefraction must be provided
units: [-]
|
species_volumefraction |
optional; species volume fraction list of the composition (sum must be 1). concentrationSpecies = species_volumefraction * species_density / particle_density. Either species_massfraction or species_volumefraction must be provided
units: [-]
|
species_density |
obligatory; species density list of the composition
units: [mass/length^3]
|
species_calc_concentration |
optional; species name list of the species for which ‘concentration_SPECIESNAME’ is calculated. If not defined, the concentration is calculated for all species.
units: [-]
|
composition_mixture_density |
optional; This value overrules the calculated mixture density. A particle’s species mass is then calculated as: Vp*composition_mixture_density*concentration_species.
units: [mass/length^3]
|
species_is_liquid |
optional; boolean (‘yes’ or ‘no’) list, indicating which of the species is considered being ‘liquid’.
units: [-]
|
species_porosity |
optional; scalar list, of the volumetric porosity of a (non liquid) species.
units: [-]
|
species_swell_factor |
optional; scalar list, of the volumetric swelling factor of a (non liquid) species.
units: [-]
|
species_max_liquid_massfraction |
optional; scalar list, of the maximum possible mass fraction of a liquid species.
units: [-]
|
species_max_liquid_volumefraction |
optional; scalar list, of the maximum possible volume fraction of a liquid species.
units: [-]
|
Examples
composition_properties composition1 &
species {C, N} &
species_massfraction {0.1, 0.9} &
species_density {2000, 3000} &
species_is_liquid {yes, no}
Description
This command allows to define the properties of a composition. Multiple instances of the command can be used to define different compositions. By default, the species mass is written as ‘mass_SPECIESNAME’ and the species concentration is written as ‘concentration_SPECIESNAME’ for each species.
Restrictions
Default
none