Source code documentation for MocDown extensions

RbwrTh

RbwrTh.py is a MocDown external library. It modifies the default MocDown coolant update calculation, fuel processing, and cycle multiplication factor methods for simulation of the RBWR-Th core design.

class RbwrTh.BoilingCalculation(cellNumbers, cellNumber2PreviousMassDensity, cellNumber2MassDensity, axialPowers, axialQualitys, axialVoidFractions, finePositionCPRs, minimumCriticalPowerRatio, minimumCriticalPowerRatioQuality, minimumCriticalPowerRatioLocation, criticalPowerRatioLimit, flowLengths, axialPressureDrops, transportOutputFile)

Coolant density calculation for a single boiling channel.

GetCellNumberAccumulatedFlowLength(cellNumber)

Return accumulated active length of a cell.

GetCellNumberFlowLength(cellNumber)

Return active length of a cell.

GetCellNumberLinearHeatRate(cellNumber)

Return linear heat rate for a cell.

GetCellNumberMassDensity(cellNumber)

Return current mass density for a cell.

GetCellNumberPressureDrop(cellNumber)

Return pressure drop over a cell.

GetCellNumberPreviousMassDensity(cellNumber)

Return previous mass density for a cell.

GetCellNumberQuality(cellNumber)

Return quality for a cell.

GetCellNumberThermalPower(cellNumber)

Return thermal power for a cell.

GetCellNumberVoidFraction(cellNumber)

Return void fraction for a cell.

GetCellNumbers()

Return cell numbers.

GetCriticalPowerRatioLimit()

Return critical power ratio limit.

GetFinePositionCPRs()

Return list of critical power ratios.

GetMinimumCriticalPowerRatio()

Return magnitude of minimum critical power ratio.

GetMinimumCriticalPowerRatioLocation()

Return location of minimum critical power ratio.

GetMinimumCriticalPowerRatioQuality()

Return quality of minimum critical power ratio.

GetMultiplicationFactor()

Return multiplication factor.

GetMultiplicationFactorSigma()

Return multiplication factor standard deviation.

GetOutletCellNumber()

Return outlet cell number.

GetPressureDrop()

Return total pressure drop.

GetUpdateCellNumbers()

Return cells to be updated.

RbwrTh.CriticalPowerRatioMITCISE4(steam, axialPowers, flowLengths, endIndex)

Perform MIT-modified CISE-4 critical power ratio correlation.

RbwrTh.GetLibraryParametersConverters(self)

Return default values and parsing functions for RBWR-Th parameters.

RbwrTh.MultiBatchCoreKeff(times, values, order=4, weights=None, timeSteps=500, batches=5)

Perform a harmonic mean for a time-series.

RbwrTh.MultiBatchCoreKeffEoc(self)

Return batch-averaged EOC multiplication factor.

RbwrTh.MultiBatchCoreKeffEocCycleStretch(times, values, order=4, minimum=0.0, maximum=2.0, number=500)

Return batch-averaged EOC multiplication factors for many batch lengths.

RbwrTh.MultiBatchHarmonicMean(times, values, order=4, weights=None, timeSteps=500, batches=5)

Perform a harmonic mean for a time-series.

RbwrTh.MultiplicationFactor(self)

Return batch-averaged EOC multiplication factor.

RbwrTh.PolynomialInterpolation(x, xp, yp, order)

Perform polynomial interpolation.

RbwrTh.PressureDropEPRI(steam, quality, voidFraction, massDensity, flowLengths)

EPRI pressure drop correlation.

RbwrTh.PressureDropTwoPhase(steam, quality, voidFraction, massDensity, flowLengths, twoPhaseFrictionMultiplier)

Perform generic two-phase pressure drop correlation.

RbwrTh.ProcessFuelOffline(bocFileName, eocFileName, newFileName)

Offline fuel processing helper.

RbwrTh.RbwrThBoilingCalculation(self, transportOutputFile)

Override coolant density calculation.

RbwrTh.RbwrThRecycle(bocTransportFile, eocTransportFile)

Override fuel processing.

class RbwrTh.Steam(pressure, temperature, massFlowRate, heatedDiameter, hydraulicDiameter, flowArea)

Steam thermodynamic properties.

RbwrTh.UpdateCoolantDensitys(self, transportOutputFile)

Override coolant density calculation.

RbwrTh.UpdateCoolantDensitysOffline()

Offline coolant density update helper.

RbwrTh.VoidFractionBaroczy(steam, quality)

Perform Baroczy void fraction correlation (Carey, p.512).

RbwrTh.VoidFractionBestion(steam, quality)

Perform Bestion void fraction correlation.

RbwrTh.VoidFractionChexalLellouche(steam, quality)

Perform Chexal-Lellouche void fraction correlation.

RbwrTh.VoidFractionDriftFlux(x, rhol, rhov, G, C0, Vvj)

Perform generic drift-flux void fraction correlation.

RbwrTh.VoidFractionGeneric(x, rhol, rhov, mul, muv, Bb, n1, n2, n3)

Retrurn generic void fraction correlation (Carey, p.512).

RbwrTh.VoidFractionHomogeneous(steam, quality)

Perform homogeneous void fraction correlation (Carey, p.512).

RbwrTh.VoidFractionLM(steam, quality)

Perform Lockhart and Martinelli void fraction correlation (Carey, p.512).

RbwrTh.VoidFractionLPG(steam, quality)

Peform Liao/Parlos/Griffith (LPG) void fraction correlation.

RbwrTh.VoidFractionRELAP(steam, quality)

Perform Chexal-Lellouche void fraction correlation.

RbwrTh.VoidFractionThom(steam, quality)

Perform Thom void fraction correlation (Carey, p.512).

RbwrTh.VoidFractionWallis(steam, quality)

Perform Wallis void fraction correlation (Carey, p.512).

RbwrTh.VoidFractionZivi(steam, quality)

Perform Zivi void fraction correlation (Carey, p.512).

RbwrAc

RbwrAc.py is a MocDown external library which serves as an extension to RbwrTh.py. Only the fuel processing method is modified.

RbwrAc.ProcessFuelOffline(bocFileName, eocFileName, newFileName)

Offline fuel processing helper.

RbwrAc.RbwrACRecycle(bocTransportFile, eocTransportFile)

Override fuel processing.

PECS-Check

PecsCheck.py is a benchmark for code-to-code comparison with PECS. It inherits MocDown and modifies some depletion and recycling methods to emulate the PECS simulation.

PecsCheck.GetZa2Moles(self, cellNumbers=None, endOfCycle=False)

Override dicionary mapping isotope to moles.

class PecsCheck.PECSCalculation(arguments)

PECS-syle replacement for RecycleCalculation.

Equilibrate()

Execute PECS-style recycling.

GetBaseName()

Return base of MCNP input filename.

GetDisplayFiles()

Return if file operations are verbose.

GetIsPickleTransmute()

PECS-style calculations only transmute!.

GetOriginalPickle()

Return initial pickle.

GetOriginalTransport()

Return initial MCNP input file.

GetRecycleString()

Return string for current PECS-style recycling step.

Populate(arguments)

Populate.

class PecsCheck.PECSDepletion(originalTransportFile, depletionCalculationPickle, recycleIndex)

PECS-syle replacement for DepletionCalculation.

Deplete()

Execute PECS-style depletion.

GetCellNumber2Micros()

Return dictionary mapping cell to one-group microscopic cross-sections for current depletion step.

GetCellNumber2Zam2Moles()

Return dictionary mapping cell to isotope to moles for current depletion step.

GetCellNumberBurnRate(cellNumber)

Return cell flux or power for current depletion step.

GetCellNumberMicros(cellNumber)

Return one-group microscopic cross-sections of a cell for this depletion step.

GetCellNumberVolume(cellNumber)

Return volume of a cell.

GetCellNumberZam2Moles(cellNumber)

Return dictionary mapping isotope to moles of a cell for this depletion step.

GetDefaultPhotonLibraryFileName()

Return ORIGEN2 default photon library filename.

GetDisplayFiles()

Return if file operations are verbose.

GetIsPickleTransmute()

Return if current depletion step is to be transmuted using pickles.

GetParameters()

Return mocdown input file parameters.

GetPickle()

Return depletion calculation pickle.

GetPickleFileName()

Return depletion calculation pickle filename.

GetRecycleIndex()

Return index of current recycling step.

PrepareDepletion(depletionCalculationPickle)

Populate default PECS-style depletion parameters.

PrepareTransmute(cellNumber, tmpDir='./')

Prepare transmute calculation.

ProcessFuel(previousPickle)

Override fuel processing.

Transmute(cellNumber, tmpDir='./', currentDir='')

Execute ORIGEN2.

TransmuteThread(cellNumber, currentDir)

Execute transmute concurrently for a cell.

TransmuteThreads(currentDir)

Execute transmute concurrently for each cell.

PecsCheck.ProcessFuel(self, previousPickle)

Override fuel processing.