def massFractions(self, species = None):
"""Species mass fraction array.
If optional argument 'species'
is supplied, then only the values for the selected species are
returned.
>>> y1 = ph.massFractions() # all species
>>> y2 = ph.massFractions(['OH', 'CH3'. 'O2'])
"""
y = _cantera.phase_getarray(self._phase_id,21)
return self.selectSpecies(y, species)
def moleFractions(self, species = None):
"""Species mole fraction array.
If optional argument *species* is supplied, then only the values
for the selected species are returned.
>>> x1 = ph.moleFractions() # all species
>>> x2 = ph.moleFractions(['OH', 'CH3'. 'O2'])
"""
x = _cantera.phase_getarray(self._phase_id,20)
return self.selectSpecies(x, species)
def atomicWeights(self, elements = []):
"""Array of element molar masses [kg/kmol].
If a sequence of element symbols is supplied, only the values
for those elements are returned, ordered as in the
list. Otherwise, the values are for all elements in the phase,
ordered as in the input file. """
atw = _cantera.phase_getarray(self._phase_id,1)
if elements:
ae = []
m = 0
for e in elements:
m = self.elementIndex(e)
ae.append(atw[m])
return asarray(ae)
else:
return atw
def molarMasses(self, species = None):
"""Array of species molar masses [kg/kmol]."""
mm = _cantera.phase_getarray(self._phase_id,22)
return self.selectSpecies(mm, species)