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Updated: Jun 4, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
Published on: September 26, 2016
Global sensitivity analysis of chemical-kinetic reaction mechanisms: construction and deconstruction of the
Michael J Davis1, Rex T Skodje, Alison S Tomlin
1Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
Abstract:
This paper investigates global sensitivity analysis as applied to reaction mechanisms. It uses the HDMR (high-dimensional model representation) expansion and the features of the sensitivity indices to explore the probability density function (pdf) of predicted target outputs that results from the uncertainties in the rate coefficients. We study the autoignition of H(2)/O(2) mixtures, where the pdf describes the uncertainty in ignition delay times due to the uncertainties in the rate coefficients. The global sensitivity analysis in conjunction with the HDMR expansion allows for the deconstruction of the pdf in several different ways. These deconstructions allow the features of the pdf to be understood in terms of the constitute reactions in much finer detail than the study of a variance decomposition alone.
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