Simulation of simultaneous tablet–emitter surface ignition by a flow of two-phase combustion products and tablet–emitter ejection from a cartridge case
This article presents the results of mathematical modeling of the ignition and ejection of a tablet-emitter from a cartridge case. Heat exchange between the tablet-emitter surface and combustion products is a result of the thermal conductivity of the particles, gas convection, and radiation. When the tablet surface temperature reaches the ignition temperature, the combustion products begin to move from the tablet-emitter into the free volume of the cartridge case. When the burst pressure is reached, the membrane opens and the combustion products flow out of the cartridge case. Affected by the pressure of the ejected combustion products, the tablet comes into motion and leaves the cartridge case. Time dependences of the average volume pressure in the cartridge case are obtained for two particle radii (1 and 25 pm). The ignition time for the end surface of the tablet-emitter is estimated. The gap size between the cylindrical surfaces of the tablet and the cartridge case varies from 0.5 to 2 mm. The velocity of the tablet-emitter discharge from the cartridge case is obtained. It is revealed that gap size has a significant impact on the ignition process.
Keywords
internal ballistics,
muzzle velocity,
mathematical modeling,
combustion,
combustion products,
false heat targetsAuthors
| Gimaeva Nataliya R. | Tomsk State University | natalia.gimaeva@inbox.ru |
| Minkov Leonid L. | Tomsk State University | lminkov@ftf.tsu.ru |
Всего: 2
References
Vasquez S.A., Ivanov V.A. A phase coupled method for solving multiphase problems on unstructured meshes // Proceedings of the ASME Fluids Engineering Division Summer Meeting (FEDSM2000), American Society of Mechanical Engineers. 2000. V. 251. P. 659-664.
Yongtao Wang, Shukui Ding, Xiaobing Zhang. A novel structure to inhibit barrel erosion induced by thermal effects in a propulsion system // International Communications in Heat and Mass Transfer. 2023. V. 147. Art. 106991.
Yongtao Wang, Xiaobing Zhang. Numerical investigation on muzzle flow characteristics for small combustion chamber with embedded propelled body // Structures. 2023. V. 50. P. 1783-1793.
Goodman T.R Application of integral methods to transient nonlinear heat transfer // Advances in Heat Transfer / T. Irvine, J. Hartnett (eds). New-York: Academic Press, 1964. V. 1. P. 51-122.
Соркин Р.Е. Теория внутрикамерных процессов в ракетных системах на твердом топливе. Внутренняя баллистика. М.: Наука, 1983. 288 с.
Архипов В.А., Бондарчук С.С., Бондарчук И.С., Золоторёв Н.Н., Козлов Е.А., Орлова М.П. Математическое моделирование утилизации головного обтекателя ракеты-носителя после его отработки // Вестник Томского государственного университета. Математика и механика. 2023. № 84. С. 52-67.
Yingkun Li, Xiong Chen, Jinsheng Xu, Changsheng Zhou, Omer Musa. Three-dimensional multi-physics coupled simulation of ignition transient in a dual pulse solid rocket motor // Acta Astronautica. 2018. V. 146. P. 46-65.
Minkov L.L., Shrager E.R., Kiryushkin A.E. Two approaches for simulating the burning sur face in gas dynamics // Key Engineering Materials. 2016. V. 685. P. 114-118.
Нигматулин Р.И. Динамика многофазных сред. М.: Наука, 1987. Ч. I. 464 с.
Qiang Li, Peijin Liu, Guoqiang He. Fluid-solid coupled simulation of the ignition transient of solid rocket motor // Acta Astronautica. 2015. V. 110. P. 180-190.
Данилин Ю.Г., Назаров Н.А., Новикова Н.И. Взрывчатые вещества, пиротехника, средства инициирования в послевоенный период: Люди. Наука. Производство. М.-СПб: Гуманистика, 2001. 928 с.
Мельников В.Э. Современная пиротехника. М.: Наука, 2014. 480 с.
Вернидуб И.И., Пузырев Н.Г. Специалисты по взрывчатым веществам, пиротехнике и боеприпасам: биогр. энцикл. М.: АвиаРус-XXI, 2006. 702 c.
Шидловский А.А. Основы пиротехники. 4-е изд. М.: Машиностроение, 1973. 292 с.
