Highly oscillatory waves in quasilinear hyperbolic-parabolic coupled equations
Highly oscillatory waves in quasilinear hyperbolic-parabolic coupled equations
复制标题
拟线性双曲-抛物线耦合方程中的高振荡波
DOI:
10.1063/1.4996887
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发表时间:
2017-08
影响因子:
1.3
通讯作者:
Wang Ya-Guang
中科院分区:
文献类型:
--
作者:
Meng Yiping;Wang Ya-Guang
In this paper, we study the Cauchy problem for a two-speed quasi-linear hyperbolic-parabolic coupled system in several space variables with highly oscillatory initial data and small viscosity. By means of nonlinear geometric optics, we derive the asymptotic expansions of oscillatory waves and deduce that the leading oscillation profiles satisfy quasilinear hyperbolic-parabolic coupled equations with integral terms, from which we obtain that the oscillations of the solutions to the hyperbolic-parabolic equations are propagated along the characteristics of the hyperbolic operators, and partial profiles of oscillations are dissipated by the parabolic effect of the system. Furthermore, by using the energy method in weighted spaces, we rigorously justify the asymptotic expansion and obtain the existence of the highly oscillatory solutions in a time interval independent of the wavelength. Finally, we use this general result to study the behavior of oscillatory waves in the one dimensional compressible viscous f...
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影响因子:
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作者:
J. Joly;G. Métivier;J. Rauch
通讯作者:
J. Joly;G. Métivier;J. Rauch
影响因子:
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作者:
J. Joly;G. Métivier;J. Rauch
通讯作者:
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期刊:
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