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  • 1
    Book
    Book
    Hyperbolic and viscous conservation laws; 72 (2001)
    Philadelphia, PA :SIAM,
    Details
    Title: Hyperbolic and viscous conservation laws; 72
    Author: Liu, Tai-Ping
    Publisher: Philadelphia, PA :SIAM,
    Year of publication: 2001
    Pages: 73 S.
    Series Statement: CBMS-NSF regional conference series in applied mathematics 72
    Type of Medium: Book
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  • 2
    Electronic Resource
    Electronic Resource
    Nonlinear resonance for quasilinear hyperbolic equation (1987)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 28 (1987), S. 2593-2602 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The purpose of this paper is to study the wave behavior of hyperbolic conservation laws with a moving source. Resonance occurs when the speed of the source is too close to one of the characteristic speeds of the system. For the nonlinear system characteristic speeds depend on the basic dependence variables and resonance gives rise to nonlinear interactions which lead to rich wave phenomena. Motivated by physical examples a scalar model is proposed and analyzed to describe the qualitative behavior of waves for a general system in resonance with the source. Analytical understanding is used to design a numerical scheme based on the random choice method. An important physical example is transonic gas flow through a nozzle. This analysis provides a transparent and revealing qualitative understanding of wave behavior of gas flow, including such phenomena as nonlinear stability, instability, and changing types of waves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.527751
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Stability of shock waves for the Broadwell equations (1988)
    Springer
    Communications in mathematical physics 114 (1988), S. 103-130 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract For the Broadwell model of the nonlinear Boltzmann equation, there are shock profile solutions, i.e. smooth traveling waves that connect two equilibrium states. For weak shock waves, we prove asymptotic (in time) stability with respect to small perturbations of the initial data. Following the work of Liu [7] on shock wave stability for viscous conservation laws, the method consists of analyzing the solution as the sum of a shock wave, a diffusive wave, a linear hyperbolic wave and an error term. The diffusive and linear hyperbolic waves are approximate solutions of the fluid dynamic equations corresponding to the Broadwell model. The error term is estimated using a variation of the energy estimates of Kawashima and Matsumura [6] and the characteristic energy method of Liu [7].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01218291
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    On nonlinear stability of general undercompressive viscous shock waves (1995)
    Springer
    Communications in mathematical physics 174 (1995), S. 319-345 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract We study the nonlinear stability of general undercompressive viscous shock waves. Previously, the authors showed stability in a special case when the shock phase shift can be determined a priori from the total mass of the perturbation, using new pointwise methods. By examining time invariants associated with the linearized equations, we can now overcome a new difficulty in the general case, namely, nonlinear movement of the shock. We introduce a coordinate transformation suitable to treat this new aspect, and demonstrate our method by analyzing a model system of generic type. We obtain sharp pointwise bounds andL p behavior of the solution for allp, 1≦p≦∞.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02099605
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  • 5
    Electronic Resource
    Electronic Resource
    The Pointwise Estimates of Diffusion Wave for the Navier–Stokes Systems in Odd Multi-Dimensions (1998)
    Springer
    Communications in mathematical physics 196 (1998), S. 145-173 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract: We study the dissipation of solutions of the isentropic Navier–Stokes equations in odd multi-dimensions. Pointwise estimates of the time-asymptotic shape of the solutions are obtained and shown to exhibit the generalized Huygen's principle. Our approach is based on the detailed analysis of the Green function of the linearized system. This is used to study the coupling of nonlinear diffusion waves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002200050418
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  • 6
    Electronic Resource
    Electronic Resource
    Nonlinear Stability of Weak Detonation Waves¶for a Combustion Model (1999)
    Springer
    Communications in mathematical physics 204 (1999), S. 551-586 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract: We show that the weak detonation waves for a combustion model of Rosales–Majda are nonlinearly stable. Because of the strongly nonlinear nature of the wave, usual stability analysis of weakly nonlinear nature does not apply. The chemical switch on-off is the main feature of nonlinearity. In particular, the propagation of the wave depends sensitively on the tail behaviour of the flow in front of it. Unlike the strong detonation waves, a weak detonation is supersonic and there is the separation of the gas waves from the reacting front. As a consequence, the reacting front needs to be traced.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002200050657
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Convergence of diffusion waves of solutions for viscous conservation laws (1989)
    Springer
    Communications in mathematical physics 120 (1989), S. 525-527 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01225511
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Hyperbolic conservation laws with relaxation (1987)
    Springer
    Communications in mathematical physics 108 (1987), S. 153-175 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract The effect of relaxation is important in many physical situations. It is present in the kinetic theory of gases, elasticity with memory, gas flow with thermo-non-equilibrium, water waves, etc. The governing equations often take the form of hyperbolic conservation laws with lower-order terms. In this article, we present and analyze a simple model of hyperbolic conservation laws with relaxation effects. Dynamic subcharacteristics governing the propagation of disturbances over strong wave forms are identified. Stability criteria for diffusion waves, expansion waves and traveling waves are found and justified nonlinearly. Time-asymptotic expansion and the energy method are used in the analysis. For dissipative waves, the expansion is similar in spirit to the Chapman-Enskog expansion in the kinetic theory. For shock waves, however, a different approach is needed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01210707
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  • 9
    Electronic Resource
    Electronic Resource
    Convergence to diffusion waves of solutions for viscous conservation laws (1987)
    Springer
    Communications in mathematical physics 110 (1987), S. 503-517 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract We study the large-time behavior of solutions of viscous conservation laws. It is shown that solutions tend to diffusion waves, which are constructed based on the heat equation and Burgers equation. The convergence is in theL p , 1≦p≦∞ sense and is obtained as a consequence of theL 2 decay of the difference between the solution and its asymptotic state of diffusion waves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01212425
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  • 10
    Electronic Resource
    Electronic Resource
    Convergence to nonlinear diffusion waves for solutions of a system of hyperbolic conservation laws with damping (1992)
    Springer
    Communications in mathematical physics 143 (1992), S. 599-605 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract We consider a model of hyperbolic conservation laws with damping and show that the solutions tend to those of a nonlinear parabolic equation time-asymptotically. The hyperbolic model may be viewed as isentropic Euler equations with friction term added to the momentum equation to model gas flow through a porous media. In this case our result justifies Darcy's law time-asymptotically. Our model may also be viewed as an elastic model with damping.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02099268
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    Paper (German National Licenses)
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