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This article is cited in 4 scientific papers (total in 4 papers)
Mechanism of the negative erosion effect
K. O. Sabdenov, M. Erzada Gumilev Eurasian National University, 010008, Astana, Kazakhstan
Abstract:
A mechanism of the negative erosive burning (effect) in the channel of a rocket motor propellant charge is proposed. Reduction in the burning rate results from a decrease in the flame temperature due to conversion of the chemical reaction heat to the kinetic energy of the gas. There is a critical value of the Vilyunov number above which steady-state propellant combustion is impossible. Steady-state combustion is possible up to a factor of $1/e^{1/2}$ decrease in the burning rate compared to the original value. An explanation is given for the weak manifestation of the negative erosion effect with a decrease in the initial propellant temperature: reducing the threshold rate of positive erosive burning narrows the region of negative erosive burning.
Keywords:
negative erosion effect, critical Vilyunov number, Bulgakov–Lipanov number.
Received: 13.01.2012 Revised: 07.06.2012
Citation:
K. O. Sabdenov, M. Erzada, “Mechanism of the negative erosion effect”, Fizika Goreniya i Vzryva, 49:3 (2013), 22–33; Combustion, Explosion and Shock Waves, 49:3 (2013), 273–282
Linking options:
https://www.mathnet.ru/eng/fgv38 https://www.mathnet.ru/eng/fgv/v49/i3/p22
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