def applyMaterialMassFracsToNumberDensities(self):
"""
Set initial (cold) number densities of this component based Material composition.
"""
density = self.material.getProperty("density",
Tc=self.inputTemperatureInC)
self.p.numberDensities = densityTools.getNDensFromMasses(
density, self.material.p.massFrac)
def updateYieldVector(self,
numberDensities=None,
massFrac=None,
fpFiltered=False):
"""update the yield values on the single lumped fission product"""
if massFrac is not None:
numberDensities = densityTools.getNDensFromMasses(1, massFrac)
if numberDensities is None:
raise ValueError(
"massFrac -- {} -- or numberDensities -- {} -- must be populated"
.format(massFrac, numberDensities))
self._updateYieldVectorFromNumberDensities(numberDensities,
fpFiltered=fpFiltered)
def applyHotHeightDensityReduction(self):
"""
Set initial (hot) number densities of this component based Material composition.
Notes
-----
We apply the hot-height density reduction here to account for pre-expanded
block heights in blueprints.
Future temperature changes can be handled by multiplications of 1/(1+dLL)**2
instead of 1/(1+dLL)**3 since we have pre-expanded in the axial direction.
"""
denistyIfNotPreExpandedAxially = self.material.getProperty(
"density", self.temperatureInK)
# axial expansion factor must be applied because ARMI expects hot heights
# to be entered on assemblies in the blueprints so that it doesn't have to
# handle the problem of fuel axially expanding at a different rate than clad.
axialExpansionFactor = 1.0 + self.material.linearExpansionFactor(
self.temperatureInC, self.inputTemperatureInC)
self.p.numberDensities = densityTools.getNDensFromMasses(
denistyIfNotPreExpandedAxially / axialExpansionFactor,
self.material.p.massFrac,
)
