Key Factors of Combustion: From Kinetics to Gas Dynamics by Nikolai M. Rubtsov

By Nikolai M. Rubtsov

This publication summarizesthe major advances inthe mechanisms of combustion tactics. It makes a speciality of the research of kinetic mechanisms of gasoline combustion methods and experimental research into the interrelation of kinetics and gasoline dynamics in fuel combustion. The publication is complimentary to the only formerly released, The Modes of Gaseous Combustion.

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Extra resources for Key Factors of Combustion: From Kinetics to Gas Dynamics

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Therefore, for termination of the flame propagation process it is necessary to meet the condition representing an estimate of the upper bound of k1 (we consider termination of chains only via inhibitor): 14 1 Nonlinear Phenomena and Kinetic Mechanism of a Gaseous … Fig. 025 % (f). Points— experimental data; heavy curves are the results of calculations on the basis of the model [30]; thin curves—approximation of the experimental data by the least square method; dashed vertical lines denote the limits of flame propagation 2k4 ½ClŠ½NOClŠcrit [ k1 ½ClŠ½NCl3 Šo Here [NCl3]0 is the initial concentration of NCl3 in the mixture, [NOCl]crit is the initial concentration of inhibitor at which non-thermal flame propagation is still observed.

Besides, the one-dimensional problem discussed does not allow analyzing spatial modes of propagation of the reaction front as it often takes place for nonlinear dynamic systems [44]. We did not set the objective to achieve quantitative agreement between calculated and experimental values of the velocities and the limits of the flame propagation by variation of constants ki. As it stated in the Introduction the value of such adjustment is small as a large number of parameters is taken into account in calculations.

2 Propagation of Non-thermal Flame in the Low-Pressure … 23 limits of non-thermal flame propagation. If it was necessary to carry out long calculations, the following procedure was performed. The propagating wave occupied up to 50 nodes on the grid. When the wave approached the left border of calculation area and it was completely within the left 100 nodes on the grid (on the right, there were only zero values), the Yi values from the left half of a grid were transferred to the right half and the calculations were continued.

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