Uncertainty analysis with a reduced set of input uncertainties selected using pathway analysis
2019
Pathway Analysis is used as a selection method to determine which reaction
rate coefficient uncertainties need to be included for the uncertainty
analysis, as a fast alternative for sensitivity analysis.
This requires the Pathway Analysis implementation to include the
analysis of the electron power density.
Results from Pathway Analysis as a selection method are compared with results
from sensitivity analysis.
For a nitrogen chemistry we show the agreement in results between Pathway
Analysis and sensitivity analysis,
and additionally results of the uncertainty analysis.
We also apply the method to a CO$_2$ chemical system that involves
vibrationally excited states to demonstrate the excellent performance of this
method for complex systems.
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