2021, 4 (41)

Nuclear, radiation and environmental safety

Article NameStoichiometric Mixture of Acetylene and Oxygen in Modeling of Gas Dynamic Instability Development
AuthorsS.I. Gerasimov*,**1, I.A. Kanygin*2, N.V. Nevmerzhitsky*3
Address

*Sarov Physics and Technical Institute of National Research Nuclear University «MEPHI», Nizhny Novgorod region, Sarov, 6 Duchova str., Russia 607186

**Mechanical Engineering Research Institute of Russian Academy of Sciences, Nizhny Novgorod, Belinskogo str., 603024 Russia

1ORCID iD: 0000-0002-6850-0816

WOS Researcher ID: L-2727-2016

e-mail: s.i.gerasimov@mail.ru

2ORCID iD: 0000-0001-8632-2155

e-mail: kanyginiv@yandex.ru

3e-mail: nnevmerzh@gmail.com

 

AbstractTo simulate the processes of hydrodynamic instability, various schemes for accelerating the contact boundaries of different-density media in various structures of impact pipes are used. Such experiments have their own difficulties, for example, associated with the influence of thin diaphragms that delimit the studied media before the start of movement. In this regard, gas-explosive mixtures with the maximum temperature of the reaction products are extremely promising, allowing both to minimize the destruction time of thin films-diaphragms, and to significantly reduce the size of shock tubes for conducting experiments. The paper presents the results of calculations of the thermodynamic parameters of the explosion products of a stoichiometric mixture of 2C2H2+5O2 during detonation in the models of an ideal explosion, ideal detonation, chemical peak. An example of using the explosion products of these mixtures to study the Richtmayer – Meshkov instability is given.
Keywordshydrodynamic instability, thermodynamic equilibrium, stoichiometric mixture, Chapman-Jouget point, internal energy, detonation.
LanguageRussian
References
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