The Modes of Gaseous Combustion by Nickolai M. Rubtsov

Author:Nickolai M. Rubtsov
Language: eng
Format: epub, pdf
Publisher: Springer International Publishing, Cham

Nonuniform currents of gas obtained by the introduction of Ti foil with three longitudinal flanges into the reactor (see Sect. 5.4.1) were provided in the following series of experiments. It was established (Fig. 5.15, TiO2 foil with flanges) that in case of rough internal surface of the reactor the most intensive afterburning of gas mixture occurs over the area of nonuniform currents of gas namely over the region of flanges.

It is of interest to compare the frequencies of the oscillations observed directly on pressure oscillograms (Fig. 5.16) and frequencies of the normal modes of vibrations of the cylinder filled with gas. For determination of normal modes of the cylindrical reactor, it is enough to put the right term of Eq. (5.4.1) equal to zero. Assuming P (x, y, z, t) = exp(iwt) v (x, y, z) we get the well-known wave equation [44]:

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