N. M. Rubtsov, V. I. Chernysh, G. I. Tsvetkov, K. Ya. Troshin, “Features of the interaction of the combustion front of methane–air mixtures with hollow cylindrical and conical obstacles at low pressures”, Mendeleev Commun., 34:2 (2024), 288

Communications

Features of the interaction of the combustion front of methane–air mixtures with hollow cylindrical and conical obstacles at low pressures

N. M. Rubtsov^a, V. I. Chernysh^a, G. I. Tsvetkov^a, K. Ya. Troshin^b

^a A.G. Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, Moscow Region, Russian Federation
^b N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russian Federation

Аннотация: It was shown that at 298 K and 100–300 Torr, the flame front of a well-mixed dilute methane–oxygen mixture, propagating to the ends of hollow cylindrical and conical obstacles, does not form a vortex shedding behind them; however, under the same conditions, this instability occurs when hot products flow behind the obstacles.

Ключевые слова: methane combustion, instability, vortex, obstacle, cylindrical, conical, low Mach number, Navier–Stokes equations.

Язык публикации: английский

DOI: 10.1016/j.mencom.2024.02.042

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