A novel operator-splitting technique for one-dimensional laminar premixed flames

Bhashyam, A. T. ; Deshpande, S. M. ; Mukunda, H. S. ; Goyal, G. (1986) A novel operator-splitting technique for one-dimensional laminar premixed flames Combustion Science and Technology, 46 (3-6). pp. 223-248. ISSN 0010-2202

Full text not available from this repository.

Official URL: http://www.informaworld.com/smpp/content~db=all~co...

Related URL: http://dx.doi.org/10.1080/00102208608959801


This paper is concerned the calculation of flame structure of one-dimensional laminar premixed flames using the technique of operator-splitting. The technique utilizes an explicit method of solution with one step Euler for chemistry and a novel probabilistic scheme for diffusion. The relationship between diffusion phenomenon and Gauss-Markoff process is exploited to obtain an unconditionally stable explicit difference scheme for diffusion. The method has been applied to (a) a model problem, (b) hydrazine decomposition, (c) a hydrogen-oxygen system with 28 reactions with constant Dρ2 approximation, and (d) a hydrogen-oxygen system (28 reactions) with trace diffusion approximation. Certain interesting aspects of behaviour of the solution with non-unity Lewis number are brought out in the case of hydrazine flame. The results of computation in the most complex case are shown to compare very favourably with those of Warnatz, both in terms of accuracy of results as well as computational time, thus showing that explicit methods can be effective in flame computations. Also computations using the Gear-Hindmarsh for chemistry and the present approach for diffusion have been carried out and comparison of the two methods is presented.

Item Type:Article
Source:Copyright of this article belongs to Taylor and Francis Ltd.
ID Code:9466
Deposited On:02 Nov 2010 12:09
Last Modified:11 Jul 2012 09:00

Repository Staff Only: item control page