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相关论文: Kinetic shock profiles for the Landau equation

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We establish existence, uniqueness and stability of transonic shocks for steady compressible non-isentropic potential flow system in a multidimensional divergent nozzle with an arbitrary smooth cross-section, for a prescribed exit pressure.…

偏微分方程分析 · 数学 2015-05-18 Myoungjean Bae , Mikhail Feldman

The paper considers the Euler system of PDE on a smooth compact Riemannian manifold of positive curvature without boundary, and the sphere ${\mathbb{S}}^2$ in particular. The paper interprets the Euler equations as a transport problem for…

偏微分方程分析 · 数学 2020-11-24 Gordon Blower

These lecture notes provide the material for a short introductory course on effective equations for classical particle systems. They concern the basic equations in kinetic theory, written by Boltzmann and Landau, describing rarefied gases…

数学物理 · 物理学 2022-10-10 Mario Pulvirenti , Sergio Simonella

A new condition for the linear dissipative instability of the strong plane shock wave in an arbitrary medium is obtained. The instability of the shock is realized due to the flow instability behind its front, which is similar to the known…

流体动力学 · 物理学 2020-06-24 Sergey G. Chefranov

We consider the Cauchy problem in R^n for some types of damped wave equations. We derive asymptotic profiles of solutions with weighted L^{1,1}(R^n) initial data by employing a simple method introduced by the first author. The obtained…

偏微分方程分析 · 数学 2018-08-15 Ryo Ikehata , Shin Iyota

The Enskog-Landau kinetic equation is considered to describe non-equilibrium processes of a mixture of charged hard spheres. This equation has been obtained in our previous papers by means of the non-equilibrium statistical operator method.…

等离子体物理 · 物理学 2007-05-23 A. E. Kobryn , M. V. Tokarchuk , Y. A. Humenyuk

A dilute gas of hard disks confined between two straight parallel lines is considered. The distance between the two boundaries is in between one and two particle diameters, so that the system is quasi-one-dimensional. A Boltzmann-like…

统计力学 · 物理学 2022-04-13 M. Mayo , J. Javier Brey , M. I. García de Soria , P. Maynar

In this paper we analyze the interaction of an incompressible, generalized Newtonian fluid with a linearly elastic Koiter shell whose motion is restricted to transverse displacements. The middle surface of the shell constitutes the…

偏微分方程分析 · 数学 2012-12-17 Daniel Lengeler

We derive a scheme by which to solve the Liouville equation perturbatively in the nonlinearity, which we apply to weakly nonlinear classical field theories. Our solution is a variant of the Prigogine diagrammatic method, and is based on an…

统计力学 · 物理学 2024-03-26 Vladimir Rosenhaus , Michael Smolkin

Hydrodynamic equations for an inelastic Maxwell model are derived from the inelastic Boltzmann equation based on a systematic Chapman-Enskog perturbative scheme. Transport coefficients appear in Navier-Stokes order have been determined as a…

统计力学 · 物理学 2016-08-31 Hisao Hayakawa

We consider the Cauchy problem for incompressible viscoelastic fluids in the whole space $\mathbb{R}^d$ ($d=2,3$). By introducing a new decomposition via Helmholtz's projections, we first provide an alternative proof on the existence of…

偏微分方程分析 · 数学 2023-07-28 Xianpeng Hu , Hao Wu

Continuing a line of investigation initiated by Texier and Zumbrun on dynamics of viscous shock and detonation waves, we show that a linearly unstable Lax-type viscous shock solution of a semilinear strictly parabolic system of conservation…

偏微分方程分析 · 数学 2008-11-10 Kevin Zumbrun

We study the kinetic theory of a weakly interacting quantum field. Assuming a state that is close to homogeneous and stationary, we derive a closed kinetic equation for the rate of change of the occupation numbers, perturbatively in the…

高能物理 - 理论 · 物理学 2025-09-03 Xu-Yao Hu , Vladimir Rosenhaus

We utilize a three-dimensional manifold to solve Riemann Problems that arise from a system of two conservation laws with quadratic flux functions. Points in this manifold represent potential shock waves, hence its name wave manifold. This…

Extending to systems of hyperbolic--parabolic conservation laws results of Howard and Zumbrun for strictly parabolic systems, we show for viscous shock profiles of arbitrary amplitude and type that necessary spectral (Evans function)…

偏微分方程分析 · 数学 2007-05-23 Mohammadreza Raoofi , Kevin Zumbrun

The question of (non-)uniqueness of one-dimensional self-similar solutions to the Riemann problem for hyperbolic systems of gas dynamics in sets of multi-dimensional admissible weak solutions was addressed in recent years in several papers…

偏微分方程分析 · 数学 2020-12-02 Christian Klingenberg , Ondřej Kreml , Václav Mácha , Simon Markfelder

We investigate a kinetic model for compressible non-ideal fluids [DOI:10.1103/PhysRevE.102.020103]. The model imposes the local thermodynamic pressure through a rescaling of the particles velocities, which accounts for both long- and…

流体动力学 · 物理学 2021-02-02 Ehsan Reyhanian , Benedikt Dorschner , Ilya Karlin

Starting from the kinetic equations for the fluctuations and correlations of a dilute gas of inelastic hard spheres or disks, a Boltzmann-Langevin equation for the one-particle distribution function of the homogeneous cooling state is…

统计力学 · 物理学 2015-05-13 J. Javier Brey , P. Maynar , M. I. Garcia de Soria

Starting from the Liouville equation, and using a BBGKY-like hierarchy, we derive a kinetic equation for the point vortex gas in two-dimensional (2D) hydrodynamics, taking two-body correlations and collective effects into account. This…

统计力学 · 物理学 2015-05-30 Pierre-Henri Chavanis

We study the lagrangian structure for weak solutions of two dimensional Navier-Stokes equations for a non-barotropic compressible fluid, i.e. we show the uniqueness of particle trajectories for two dimensional compressible fluids including…

偏微分方程分析 · 数学 2018-10-29 Pedro Maluendas , Marcelo M. Santos