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On the structure of detonation waves in magnetohydrodynamics
School of Mathematics, Damghan University of Basic Sciences P.O. Box 36715-364, Damghan, Iran E-mail address: aghajani{at}dubs.ac.ir
Department of Mathematical Sciences, Sharif University of Technology P.O. Box 11365-9415, Tehran, Iran E-mail address: hesaraki{at}sina.sharif.edu
The mathematical question of the existence of detonation waves in magnetohydrodynamics for rectilinear motion is stated in terms of a six-dimensional system of ordinary differential equations, which depends on six viscosity parameters, the bulk viscosity, the heat transfer coefficient, the coefficient of thermal conductivity, the coefficient of electrical conductivity, the diffusion rate for the reactant, and the reaction rate coefficient. In this paper, we will show that strong and weak detonation waves for fast, switch-on, and, in the case of transverse magnetic field, exothermic reactions exist. Along these waves, the density and the temperature are always increasing. These kinds of detonations occur in jet engine problems.
References
- Hale J. K. Theory of Functional Differential Equations (1977) New York: Springer. x+365.
- Hale J. K., Verduyn Lunel S. M. Introduction to Functional-Differential Equations. In: Applied Mathematical Sciences (1993) 99. New York: Springer. x+447.
- Kolmanovski
V. B., Nosov V. R. Stability of Functional-Differential Equations. In: Mathematics in Science and Engineering (1986) 180. London: Academic Press. xiv+217. - Lakshmikantham V., Leela S., Martynyuk A. A. Stability Analysis of Nonlinear Systems. In: Monographs and Textbooks in Pure and Applied Mathematics (1989) 125. New York: Marcel Dekker. xii+315.
- Razumikhin B. S. Stability of Systems with Retardation (1988) Moscow: Nauka.
- Bainov D. D., Covachev V. Impulsive Differential Equations with a Small Parameter. In: Series on Advances in Mathematics for Applied Sciences (1994) 24. New Jersey: World Scientific. x+268.
- Bainov D. D., Simeonov P. S. Systems with Impulse Effect. Stability, Theory and Applications. In: Ellis Horwood Series: Mathematics and Its Applications (1989) Chichester: Ellis Horwood. 255.
- Bainov D. D., Simeonov P. S. Impulsive Differential Equations: Periodic Solutions and Applications. In: Pitman Monographs and Surveys in Pure and Applied Mathematics (1993) 66. Harlow: Longman Scientific & Technical. x+228.
- Lakshmikantham V., Bajnov D. D., Simeonov P. S. Theory of Impulsive Differential Equations. In: Series in Modern Applied Mathematics (1989) 6. New Jersey: World Scientific. xii+273.
- Simeonov P. S., Bainov D. D. Stability with respect to part of the variables in systems with impulse effect. Journal of Mathematical Analysis and Applications (1986) 117(1):247263.[CrossRef][Web of Science]
- Bainov D. D., Stamova I. M. Second method of Lyapunov and comparison principle for impulsive differential-difference equations. Journal of the Australian Mathematical Society, Series B (1997) 38(4):489505.
- Bainov D. D., Stamova I. M. Second method of Lyapunov and existence of periodic solutions of linear impulsive differential-difference equations. Panamerican Mathematical Journal (1997) 7(2):2735.
- Bainov D. D., Stamova I. M. Stability of the solutions of impulsive functional-differential equations by Lyapunov's direct method. The ANZIAM Journal (2001) 43(2):269278.
- Gopalsamy K., Zhang B. G. On delay differential equations with impulses. Journal of Mathematical Analysis and Applications (1989) 139(1):110122.[CrossRef][Web of Science]
- Krishna S. V., Anokhin A. V. Delay differential systems with discontinuous initial data and existence and uniqueness theorems for systems with impulse and delay. Journal of Applied Mathematics and Stochastic Analysis (1994) 7(1):4967.[CrossRef]
- Luo Z., Shen J. Stability and boundedness for impulsive functional differential equations with infinite delays. Nonlinear Analysis (2001) 46(4):475493.[CrossRef]
- Rama Mohana Rao M., Srivastava S. K., Sivasundaram S. Stability of Volterra integro-differential equations with impulsive effect. Journal of Mathematical Analysis and Applications (1992) 163(1):4759.[CrossRef][Web of Science]
- Shen J., Yan J. Razumikhin type stability theorems for impulsive functional-differential equations. Nonlinear Analysis (1998) 33(5):519531.[CrossRef]
- Stamova I. M., Stamov G. T. Lyapunov-Razumikhin method for impulsive functional differential equations and applications to the population dynamics. Journal of Computational and Applied Mathematics (2001) 130(1-2):163171.[CrossRef][Web of Science]
- Yan J., Zhao A. Oscillation and stability of linear impulsive delay differential equations. Journal of Mathematical Analysis and Applications (1998) 227(1):187194.[CrossRef][Web of Science]
- Yu J. S. Stability for nonlinear delay differential equations of unstable type under impulsive perturbations. Applied Mathematics Letters (2001) 14(7):849857.[CrossRef][Web of Science]
- Yu J. S., Zhang B. G. Stability theorem for delay differential equations with impulses. Journal of Mathematical Analysis and Applications (1996) 199(1):162175.[CrossRef][Web of Science]
- Luo J. W., Yu J. S. Global asymptotic stability of nonautonomous mathematical ecological equations with distributed deviating arguments. Acta Mathematica Sinica (1998) 41(6):12731282. Chinese.
- Weng P. X., Liang M. L. The existence and behavior of a periodic solution of a hematopoiesis model. Mathematica Applicata (1995) 8(4):434439.
- Gopalsamy K., Weng P. X. Global attractivity and level crossings in a model of haematopoiesis. Bulletin of the Institute of Mathematics. Academia Sinica (1994) 22(4):341360.
- So J. W.-H., Yu J. S. Global attractivity and uniform persistence in Nicholson's blowflies. Differential Equations and Dynamical Systems (1994) 2(1):1118.
- Weng P. X., Liang M. Existence and global attractivity of periodic solution of a model in population dynamics. Acta Mathematicae Applicatae Sinica (1996) 12(4):427434.[CrossRef]
- Rouche N., Habets P., Laloy M. Stability Theory by Liapunov's Direct Method (1977) New York: Springer. xii+396.
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