2528df0f75
These changes make it unnecessary to copy header files around during the build process, which tends to confuse IDEs and debuggers. The headers which comprise Cantera's external C++ interface are now in the 'include' directory. All of the samples and demos are now in the 'samples' subdirectory.
47 lines
1.6 KiB
Matlab
47 lines
1.6 KiB
Matlab
function a = setMoleFractions(a,x,norm)
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% SETMOLEFRACTIONS Set the species mole fractions.
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%
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% setMoleFractions(a,x)
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%
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% If x is a vector of doubles, this call sets the species mole
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% fractions to the values in x and then scales them so that they
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% sum to 1.0. The length of x must equal the number of species.
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%
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% If x is a string, then the mole fractions of the listed
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% species are set to the specified values, and all others are
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% set to zero. The syntax for the string is as shown in these
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% examples:
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% 'CH4:4, O2:2, AR:3'
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% 'SIH2:0.9,H2:0.1'
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%
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% setMoleFractions(a, x, 'nonorm')
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%
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% As above, but the normalization step is skipped. This only
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% works if x is an array, not a string. Since unnormalized mole
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% fractions can lead to unphysical results, 'nonorm' should be
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% used only in rare cases, such as computing partial
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% derivatives with respect to a species mole fraction.
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%
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% Note that calling setMoleFractions leaves the temperature and
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% density unchanged, and therefore the pressure changes if the new
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% composition has a molar mass that is different than the old
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% composition. If it is desired to change the composition and hold
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% the pressure fixed, use method 'set' (defined in class Solution)
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% instead, or call setPressure after calling setMoleFractions.
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if isa(x,'double')
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if nargin == 3
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if strcmp(norm,'nonorm')
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phase_set(a.tp_id,22,x);
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else
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phase_set(a.tp_id,20,x);
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end
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else
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phase_set(a.tp_id,20,x);
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end
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%
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% string input
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%
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elseif isa(x,'char')
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phase_set(a.tp_id,30,x);
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end
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