Combustion wave instability in the filtration combustion of gases

Springer Science and Business Media LLC - Tập 30 - Trang 306-310 - 1994
S. S. Minaev, S. I. Potytnyakov, V. S. Babkin

Tóm tắt

Theoretical and experimental approaches to the problem of combustion wave stability in gas filtration combustion are described. An approximate criterion of instability for an initially plane combustion wave front is suggested within the framework of a hydrodynamic model. It is shown that the wave instabiliry cannot be observed if the reactor diameter is under a critical value. The critical value of the diameter increases with increasing rate of gas filtration. A combustion wave propagating in the direction opposing the filtration flow is more stable than a cocurrent wave, which is consistant with experimental results.

Tài liệu tham khảo

V. S. Babkin, V. I. Drobyshevich, et al., “Filtration combustion of gases,” Fiz. Goren. Vzryva,19, No. 2, 177–186 (1983). S. I. Potytnyakov, V. S. Babkin, et al., “Investigation of the thermal structure of the combustion wave in the filtration combustion of gases,” Fiz. Goren. Vzryva.21, No. 2, 19–25 (1985). Yu. M. Laevskii, V. S. Babkin, et al., “To the theory of the filtration combustion of gases” Fiz. Goren. Vzryva,20, No. 6, 3–13 (1984). L. D. Landau, “On the slow combustion theory,” Zh. Éksp. Teor. Fiz.,14, No. 6, (1944).