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A comparison of the efficiency of numerical methods for integrating chemical kinetic rate equationsThe efficiency of several algorithms used for numerical integration of stiff ordinary differential equations was compared. The methods examined included two general purpose codes EPISODE and LSODE and three codes (CHEMEQ, CREK1D and GCKP84) developed specifically to integrate chemical kinetic rate equations. The codes were applied to two test problems drawn from combustion kinetics. The comparisons show that LSODE is the fastest code available for the integration of combustion kinetic rate equations. It is shown that an iterative solution of the algebraic energy conservation equation to compute the temperature can be more efficient then evaluating the temperature by integrating its time-derivative.
Document ID
19840023210
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Radhakrishnan, K.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
February 1, 1984
Publication Information
Publication: APL Computational Methods. 1984 JPM Spec. Session
Subject Category
Spacecraft Propulsion And Power
Accession Number
84N31280
Funding Number(s)
CONTRACT_GRANT: NAG3-147
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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