Ignition of high-energy solids with nonideal surfaces by constant heat flux
- Авторлар: Krupkin V.G.1, Mokhin G.N.1
-
Мекемелер:
- N. N. Semenov Federal Research Center for Chemical Physics of the Russian Academy of Sciences
- Шығарылым: Том 17, № 3 (2024)
- Беттер: 74-83
- Бөлім: Articles
- URL: https://ogarev-online.ru/2305-9117/article/view/277563
- DOI: https://doi.org/10.30826/CE24170307
- EDN: https://elibrary.ru/EFVWCT
- ID: 277563
Дәйексөз келтіру
Аннотация
Ignition characteristics of a high-energy solid with nonideal (rough) surface by constant heat flux were studied. The geometry of surface was represented by a set of identical protrusions having a shape of wedge based on the block of reactive solid. Depending on the ratio of the protrusion height and the depth of the heated layer formed in course of ignition process, several regimes of ignition were found: (i) when the substance is ignited as a massive block and the effect of roughness is negligible; (ii) when ignited are the individual protrusions; and (iii) the intermediate region between the previous two. Critical ignition conditions, ignition time and ignition criterion were determined for the three regimes. The results are compared with the results for the one-dimensional (1D) ignition of the semi-infinite body. It is shown that the effect of geometry on ignition results in the considerable reduction of the ignition time or the amount of energy required for the successful ignition is less compared to the 1D case.
Негізгі сөздер
Толық мәтін

Авторлар туралы
Vladimir Krupkin
N. N. Semenov Federal Research Center for Chemical Physics of the Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: krupkin49@mail.ru
Doctor of Sciences in Physics and Mathematics, Head of the Laboratory
Ресей, MoscowGrigory Mokhin
N. N. Semenov Federal Research Center for Chemical Physics of the Russian Academy of Sciences
Email: mokhin@gmail.com
Candidate of Sciences in Physics and Mathematics, Researcher
Ресей, MoscowӘдебиет тізімі
- Marshakov, V. N. 1987. The parameters of spot pulsation burning of nitroglycerine powder. Sov. J. Chem. Phys. 6(4):978–994.
- Mellor, A. M., D.A. Wiegand, and K. B. Isom. 1995. Hot spot histories in energetic materials. Combust. Flame 101:26–35.
- Marshakov, V. N., and V. A. Frost. 2018. Osobennosti protsessa vosplameneniya kondensirovannogo energeticheskogo materiala pri teplovom initsiirovanii [Peculiarities of the process of ignition of condensed energy material at thermal initiation]. Goren. Vzryv (Mosk.) — Combustion and Explosion11(4):71–80. doi: 10.30826/CE18110408.
- Rashkovsky, S. A., V. G. Krupkin, and V. N. Marshakov. 2019. Effect of the curvature of the burning surface on the burning rate of a solid homogeneous energetic material. Combust. Flame 208: 45–50. doi: 10.1016/j.combustflame.2019.07.004.
- Kulkarny, A. K., M. Kumar, and K. K. Kuo. 1982. Review of solid propellant ignition studies. AIAA J. 20(2):243– 244. doi: 10.2514/3.51071.
- Vilyunov, V. N., and V. E. Zarko. 1989. Ignition of solids. Amsterdam, Oxford, New York, Tokyo: Elsevier Science Publs. 442 p.
- Vorsteveld, L. G., and C. E. Hermance. 1987. Effect of geometry on ignition of the reactive solid: Square corner. AIAA J. 25(4):592–597. doi: 10.2514/3.9668.
- Vorsteveld, L. G., and C. E. Hermance. 1989. Effect of geometry on ignition of the reactive solid: Acute angles. J. Propul. Power 5(1):26–31.
- Margolin, A. D., G. N. Mokhin, and V. G. Krupkin. 1990. Ignition of a wedge and cone by a thermal flux in a homogeneous reaction. Combust. Explo. Shock Waves 26(1):17– 22. doi: 10.1007/BF00742266.
- Margolin, A. D., G. N. Mokhin, and V. G. Krupkin. 1991. Ignition of a wedge and cone with isothermal base by means of a heat flux. Combust. Explo. Shock Waves 27(2):133–137. doi: /10.1007/BF00789388.
- Margolin, A. D., and V. G. Krupkin. 1991. Ignition of a wedge and cone by a variable heat flux. Sov. J. Chem. Phys. 10(8):1760–1771.
- Zeldovich, Ya. B., G. I. Barenblatt, V. B. Librovich, and G. M. Makhviladze. 1985. The mathematical theory of combustion and explosions. 1st ed. Springer. 619 p.
- Margolin, A. D., V. G. Krupkin, G. N. Mokhin, and V. V. Golovanov. 1993. Critical diameter of heterogeneous combustion transmission. Sov. J. Chem. Phys. 12(11):2187–2193.
Қосымша файлдар
