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Flame-Lift Off Conditions in a Boundary Layer with Hydrogen Injection and Combustion

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.2070
pages 2019-2027

E. P. Volchkov
S. S. Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

V. V. Lukashov
S. S. Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

Vladimir V. Terekhov
Kutateladze Institute of Thermophysics SB RAS, Lavrentiev av., 1, Novosibirsk, 630090, Russia; Novosibirsk State University, Pirogov st., 2, Novosibirsk, 630090, Russia

Resumo

The aim of present research was to obtain data on the conditions of flame blowout in a laminar boundary layer with uniform injection of H2/N2 or H2/He fuel mixture through a horizontal porous plate into the air stream. This shows that the conditions of ignition and extinction of the flame in the boundary layer can be described by two quantities: dimensionless parameter and concentration of hydrogen in the fuel mixture. It turns out that the injection, corresponding to extinction, is inversely proportional to concentration of hydrogen.

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