A Study of the Sensitivity of Coupled Reaction Systems to Uncertainties in Rate Coefficients. 2. Applications

Abstract

The Fourier amplitude method developed in (AD-762 420) as a diagnostic tool for determining the sensitivity of the results of complex calculations to the parameters which enter these calculations has been applied to two chemical reaction systems involving sets of coupled, nonlinear rate equations. These were: (a) a 5 reaction set describing the high temperature (6000K) dissociation of air and (b) a 9 reaction set describing the constant temperature (2000K) combustion of H2 and O2. The authors have evaluated the Fourier amplitudes for all the species at a number of different times for both reaction systems. The analysis of these results verifies the claims made in the previous report. The conclusions based on the Fourier amplitude method for these two reaction systems are in excellent agreement with sensitivity predictions which could be made on the basis of previous kinetic studies of these systems.

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Document Details

Document Type
Technical Report
Publication Date
Jun 07, 1973
Accession Number
AD0762421

Entities

People

  • John H. Schaibly
  • Kurt E. Shuler

Organizations

  • University of California, San Diego

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Agreements
  • Algorithms
  • Amplitude
  • Chemical Reactions
  • Coefficients
  • Couplings
  • Dissociation
  • Equations
  • Fourier Analysis
  • Frequency
  • High Temperature
  • Intervals
  • Military Research
  • Monte Carlo Method
  • Sensitivity
  • Uncertainty

Fields of Study

  • Chemistry
  • Physics

Readers

  • Approximation Theory.
  • Combustion science or combustion engineering.
  • Computational Modeling and Simulation