A comparison of transport algorithms for premixed, laminar steady state flamesThe effects of different methods of approximating multispecies transport phenomena in models of premixed, laminar, steady state flames were studied. Five approximation methods that span a wide range of computational complexity were developed. Identical data for individual species properties were used for each method. Each approximation method is employed in the numerical solution of a set of five H2-02-N2 flames. For each flame the computed species and temperature profiles, as well as the computed flame speeds, are found to be very nearly independent of the approximation method used. This does not indicate that transport phenomena are unimportant, but rather that the selection of the input values for the individual species transport properties is more important than the selection of the method used to approximate the multispecies transport. Based on these results, a sixth approximation method was developed that is computationally efficient and provides results extremely close to the most sophisticated and precise method used.
Document ID
19810007777
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Coffee, T. P. (Ballistic Research Labs. Aberdeen Proving Ground, MD, United States)
Heimerl, J. M. (Ballistic Research Labs. Aberdeen Proving Ground, MD, United States)
Date Acquired
August 11, 2013
Publication Date
November 1, 1980
Publication Information
Publication: NASA. Langley Res. Center The 17th JANNAF Combust. Meeting, Vol. 2,