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Coflow Combustion in Granulated Ti + xC Mixtures: Boundary Conditions for Convection-Driven Wave Propagation

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Abstract

A transition from a conduction-driven to a convection-driven mode of coflow combustion in granulated Ti + 0.5C mixtures was experimentally detected at a pressure drop of around 1 atm. Burning velocity u was found to exhibit quadratic dependence on gas flow rate Q. The behavior of u upon variation in Q, ignition temperature, and combustion temperature was analyzed. The Q values corresponding to a transition from conduction-driven to convection-driven combustion were evaluated theoretically. Theoretical predictions for Ti + 0.5C mixture well agree with experiment.

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Authors and Affiliations

  1. Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, 142432, Chernogolovka, Moscow, Russia

    B. S. Seplyarskii, R. A. Kochetkov & T. G. Lisina

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  1. B. S. Seplyarskii
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  2. R. A. Kochetkov
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  3. T. G. Lisina
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Correspondence to B. S. Seplyarskii, R. A. Kochetkov or T. G. Lisina.

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Translated by Yu. Scheck

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Seplyarskii, B.S., Kochetkov, R.A. & Lisina, T.G. Coflow Combustion in Granulated Ti + xC Mixtures: Boundary Conditions for Convection-Driven Wave Propagation. Int. J Self-Propag. High-Temp. Synth. 28, 183–186 (2019). https://doi.org/10.3103/S1061386219030129

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  • DOI: https://doi.org/10.3103/S1061386219030129

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