Idealized Two Dimensional Flames in Premixed Systems

Idealized, two dimensional combustion is considered in terms of irrotational, premixed gases upstream of a discontinuous flame which propagates with a constant specified velocity and results in a specified decrease in density. The flame is anchored by a small flame-holder which is located on the low...

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Bibliographic Details
Published in:Combustion science and technology 1994-12, Vol.103 (1-6), p.21-39
Main Authors: SQUIRES, N. Z., LIBBY, P. A.
Format: Article
Language:English
Subjects:
Applied sciences
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Premixed flames
Theoretical studies
Theoretical studies. Data and constants. Metering
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Summary:Idealized, two dimensional combustion is considered in terms of irrotational, premixed gases upstream of a discontinuous flame which propagates with a constant specified velocity and results in a specified decrease in density. The flame is anchored by a small flame-holder which is located on the lower wall and which plays an essential role in determining the flow. With heat release the flow downstream of the flame is rotational and involves a stagnation region adjacent to the upper wall. Numerical solutions are obtained for a range of propagation speeds down lo roughly 0.70 of the velocity of the approaching stream and for several density jumps including the zero heat release case. In this latter case the assumed influence of the flame holder results in flow nonuniformity.
ISSN:0010-2202
1563-521X
DOI:10.1080/00102209408907686