Numerical modeling of detonation suppression in the reacting gas mixtures by clouds of inert nanoparticles

D. A. Tropin, A. V. Fedorov

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

The physical and mathematical models for the description of the detonation process in mixtures of hydrogen-oxygen, methane-oxygen and silane-air in the presence of inert nanoparticles were proposed. On the basis of these models the dependencies of detonation velocity deficit vs the size and concentration of inert nanoparticles were found. Three regimes of detonation flows in gas suspensions of reactive gases and inert nanoparticles were revealed: - stationary propagation of weak detonation wave in the gas suspension, - galloping propagation of detonation; - destruction of the detonation process. It was determined that the mechanisms of detonation suppression by micro- and nanoparticles are closed and lies in the splitting of a detonation wave to frozen shock wave and ignition and combustion wave. Concentration limits of detonation were calculated. It turned out that in the transition from microparticles to nanoparticles the detonation suppression efficiency does not increase.

Original languageEnglish
Title of host publicationXV All-Russian Seminar "Dynamics of Multiphase Media", DMM 2017
Editors Fomin
PublisherAmerican Institute of Physics Inc.
Number of pages7
Volume1939
ISBN (Electronic)9780735416246
DOIs
Publication statusPublished - 28 Mar 2018
Event15th All-Russian Seminar on Dynamics of Multiphase Media, DMM 2017 - Novosibirsk, Russian Federation
Duration: 3 Oct 20175 Oct 2017

Publication series

NameAIP Conference Proceedings
PublisherAMER INST PHYSICS
Volume1939
ISSN (Print)0094-243X

Conference

Conference15th All-Russian Seminar on Dynamics of Multiphase Media, DMM 2017
CountryRussian Federation
CityNovosibirsk
Period03.10.201705.10.2017

Keywords

  • PARTICLES
  • PARAMETERS
  • COMBUSTION
  • IGNITION
  • SILANE

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