Stability of shock waves with finite relaxation region
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A theoretical investigation is made into the amplification of sound in a moving nonequilibrium medium and it is shown that an instability can arise in a sufficiently strong shock wave accompanied by an exothermic process with finite relaxation region, the instability being due to the spontaneous growth of fluctuations resulting from amplification of acoustic waves in the region of exothermic relaxation and their “trapping” in a narrow layer near the shock wave.
KeywordsShock Wave Acoustic Wave Theoretical Investigation Strong Shock Exothermic Process
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- 1.S. P. D'yakov, “The stability of shock waves,” Zh. Eksp. Teor. Fiz.,27, 288 (1954).Google Scholar
- 2.R. W. Griffiths, R. J. Sandeman, and H. G. Hornung, “The stability of shock waves in ionizing and dissociating gases,” J. Phys. D:9, 1681 (1976).Google Scholar
- 3.A. S. Baryshnikov, A. P. Bedin, V. G. Maslennikov, and G. I. Mishin, “Instability of the front of a bow shock,” Pis'ma Zh. Tekh. Fiz.,5, 281 (1979).Google Scholar
- 4.A. S. Baryshnikov and G. E. Skvortsov, “Instability of shock waves in a relaxing medium,” Zh. Tekh. Fiz.,49, 2483 (1979).Google Scholar
- 5.A. S. Baryshnikov, “Investigation of the dispersion relation in the problem of relaxation instability,” Zh. Tekh. Fiz.,50, 1314 (1980).Google Scholar
- 6.D. I. Blokhintsev, “Propagation of sound in an inhomogeneous and moving medium,” Dokl. Akad. Nauk SSSR,45, 343 (1944).Google Scholar
- 7.V. V. Pukhnachev, “Stability of Chapman—Jouguet detonation,” No. 6, 66 (1963).Google Scholar