Critical conditions of shock-wave of chemical reaction in the liquid explosives containing glass microballoons
Authors: Attetkov A.V., Pilyavskaya Ye.V. | Published: 15.06.2016 |
Published in issue: #3(66)/2016 | |
DOI: 10.18698/1812-3368-2016-3-93-101 | |
Category: Physics | Chapter: Thermal Physics and Theoretical Heat Engineering | |
Keywords: liquid explosive, glass microballoons, shock-wave compression, critical conditions of initiating a chemical reaction |
In this work we consider the task of determining the temperature field of the shock compressed two-phase medium. The latter is imitated by Newtonian liquid with microspherical inclusions of the identical radius. The existence of these inclusions is actually considered by a covering of the constant thickness on a surface of the compressed pores. We develop the mathematical model of the studied process, meanwhile accepting the hypothesis that the covering is thermally thin (i.e. we admit the idea of "the concentrated capacity"). The offered mathematical model represents the mixed task for the equation in private derivatives of a parabolic type. Its specific character is due to the irregularity of the non-stationary boundary condition on the mobile border of the phases which obviously involves temperature’s derivative with respect to time. The obtained results are used for the theoretical estimation of a chemical reaction initiation limit in the liquid explosives containing glass microballoons.
References
[1] Khasainov B.A., Attetkov A.V., Borisov A.A. Shock-Wave Initiation of Porous Energetic Materials and Viscoplastic Model of Hotspots. Khimicheskaya fizika [Russian Journal of Physical Chemistry], 1996, vol. 15, no. 7, pp. 53-125 (in Russ.).
[2] Khasainov B.A., Ermolaev B.S. Initiation of a Chemical Reaction under ShockWave Compression of Liquid Explosives Containing Glass Microballoons. Khimicheskaya fizika [Russian Journal of Physical Chemistry], 1992, vol. 11, no. 11, pp. 1588-1600 (in Russ.).
[3] Khasainov B.A., Ermolaev B.S., Presles H.-N. Shock wave initiation of chemical reaction in liquid high explosives sensitized by glass microballoons. X Symp. (Int.) on Detonation. Boston, 1993, pp. 40-43.
[4] Presles H.N., Khasainov B.A., Ermolaev B.S. Influence of glass microballoons size of the detonation of nitromethane based mixture. Shock Waves, 1995, vol. 5, pp. 325-329.
[5] Kobylkin I.F., Selivanov V.V. Vozbuzhdenie i rasprostranenie vzryvnykh prevrashcheniy v zaryadakh vzryvchatykh veshchestv [Initiation and Propagation of Explosive Transformations in the Explosive Charges]. Moscow, MGTU im. N.E. Baumana Publ., 2015. 354 p.
[6] Gubaydullin A.A. et al. Waves in Liquids with Gas Bubbles. Itogi nauki i tekhniki. VINITI. Ser. Mekhanika zhidkosti i gaza [The Overall Results of Science and Technology. All-Union Institute of Scientific and Technical Information. Ser.: Fluid Mechanics], 1982, pp. 160-254 (in Russ.).
[7] Nigmatulin R.I. Dinamika mnogofaznykh sred [Dynamics of Multiphase Media]. Moscow, Nauka Publ., 1987.
[8] Kiselev S.P. et al. Udarno-volnovye protsessy v dvukhkomponentnykh i dvukhfaznykh sredakh [Shock-Wave Processes in Two-Component and Two-Phase Media]. Novosibirsk, Nauka Sib. Publ., 1992. 261 p.
[9] Pudovkin M.A., Volkov I.K. Kraevye zadachi matematicheskoy teorii teploprovodnosti v prilozhenii k raschetam temperaturnykh poley v neftyanykh plastakh pri zavodnenii [Boundary Value Problems of Heat Conduction Mathematical Theory Applied to the Calculations of Temperature Fields in the Oil Reservoirs at Waterflooding]. Kazan’, Kazanskiy univ. Publ., 1978. 188 p.
[10] Attetkov A.V., Golovina E.V., Ermolaev B.S. Mathematical simulation of mesoscopic processes of heat dissipation and heat transfer in a two-phase porous material subjected to shock compression. Journal of Heat Transfer Research, 2008, vol. 39, no. 6, pp. 479-487.
[11] Attetkov A.V., Golovina E.V., Ermolaev B.S. The Hierarchy of Models of Heat Transfer Process in the Two-Phase Porous Material under Shock Compression. Tr. V Vseros. natsional’noy konf. po teploobmenu [Proceedings of the V All-Russia National Heat Transfer Conference]. Moscow, 2010, vol. 8, pp. 50-53 (in Russ.).
[12] Khasainov B.A. et al. Two-phase viscoplastic model of shock initiation of detonation in high density pressed explosives. VII Symp. (Int.) on Detonation. Annapolis, 1981, pp. 435-448.
[13] Attetkov A.V., Golovina E.V., Ermolaev B.S. Mathematical Simulation of Mesoscopic Processes of Heat Dissipation and Heat Transfer Involving Melted Zones in Porous Material Subjected to Shock Compression. Teplovye protsessy v tekhnike [Thermal Processes in Engineering], 2010, vol. 2, no. 3, pp. 129-132 (in Russ.).
[14] Pilyavskaya E.V., Attetkov A.V. Heat Dissipation Effects during Shock Wave Propagation in Two-Phase Porous Material. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Estestv. Nauki [Herald of the Bauman Moscow State Tech. Univ., Nat. Sci.], 2011, no. 3, pp. 53-58 (in Russ.).