Source: https://www.iejme.com/article/self-oscillation-of-shock-wave-structures
Timestamp: 2019-04-22 14:18:15+00:00

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Reference: Zasukhin ON, Bulat PV. Self-Oscillation of Shock Wave Structures. Int Elect J Math Ed. 2016;11(5), 1023-1032.
Reference: Zasukhin, O. N., & Bulat, P. V. (2016). Self-Oscillation of Shock Wave Structures. International Electronic Journal of Mathematics Education, 11(5), 1023-1032.
Reference: Zasukhin, Otto N., and Pavel V. Bulat. "Self-Oscillation of Shock Wave Structures". International Electronic Journal of Mathematics Education 2016 11 no. 5 (2016): 1023-1032.
Reference: Zasukhin, O. N., and Bulat, P. V. (2016). Self-Oscillation of Shock Wave Structures. International Electronic Journal of Mathematics Education, 11(5), pp. 1023-1032.
Reference: Zasukhin, Otto N. et al. "Self-Oscillation of Shock Wave Structures". International Electronic Journal of Mathematics Education, vol. 11, no. 5, 2016, pp. 1023-1032.
Reference: Zasukhin ON, Bulat PV. Self-Oscillation of Shock Wave Structures. Int Elect J Math Ed. 2016;11(5):1023-2.
The oscillations of shock wave structures have been reviewed. The particular attention has been brought to oscillations related to the base pressure problem as to the most important problem of the flow over the bottom parts of aircrafts. Landmark research on problem of base drag, as well as of oscillation occurrence at bottom part of nozzle blocks and channels are given. The problem of supersonic air inleak onto the obstruction is reviewed. Great attention is paid to results of experimental research and to analysis of calculation issues. The mechanisms of feedback occurrence and self-oscillation maintenance are described. Shock wave oscillation arises during the supersonic flow collision with obstruction. It is a result of complex interaction between forces of viscous friction in mixing layers and shock wave structure elements transformation. Due to its relation to filling and emptying of flow regions with stagnation and low velocity, this mechanism was called “the consumption mechanism”. Acoustic feedback has an impact on the amplitude-frequency characteristics of oscillation, but do not cause them.
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