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We prove the contraction property of any large solution perturbed from a viscous-dispersive shock wave of the Navier--Stokes--Korteweg (NSK) system. The contraction holds up to a dynamical shift, since the contraction is measured by the…

偏微分方程分析 · 数学 2026-02-17 Namhyun Eun , Moon-Jin Kang , Jeongho Kim

The system of hydrodynamic-type equations is derived from Alexeev's generalized Boltzmann kinetic equation by two-side distribution function for a stratified gas in gravity field. It is applied to a problem of ultrasound propagation and…

流体动力学 · 物理学 2007-05-23 Sergey B. Leble , Maxim A. Solovchuk

We investigate the Boltzmann equation, depending on the Knudsen number, in the Navier-Stokes perturbative setting on the torus. Using hypocoercivity, we derive a new proof of existence and exponential decay for solutions close to a global…

偏微分方程分析 · 数学 2020-08-07 Marc Briant

By using a formulation of a class of compressible viscous flows with a heat source via vorticity and expansion-rate, we study the Oberbeck-Boussinesq flows. To this end we establish a new integral representation for solutions of parabolic…

偏微分方程分析 · 数学 2024-10-07 Zihao Guo , Zhongmin Qian , Zihao Shen

This work deals with the non-cutoff Boltzmann equation for all type of potentials, in both the torus $\mathbf{T}^3$ and in the whole space $\mathbf{R}^3$, under the incompressible Navier-Stokes scaling. We first establish the well-posedness…

偏微分方程分析 · 数学 2024-03-20 Chuqi Cao , Kleber Carrapatoso

We develop a microscopic theory for the dynamics of quantum fluids of light, deriving an effective kinetic equation in momentum space that takes the form of the convection-diffusion equation. In the particular case of two-dimensional…

A modified Poisson-Nernst-Planck system in a bounded domain with mixed Dirichlet-Neumann boundary conditions is analyzed. It describes the concentrations of ions immersed in a polar solvent and the correlated electric potential due to the…

偏微分方程分析 · 数学 2023-05-25 Ansgar Jüngel , Annamaria Massimini

In topology optimization of fluid-dependent problems, there is a need to interpolate within the design domain between fluid and solid in a continuous fashion. In density-based methods, the concept of inverse permeability in the form of a…

数值分析 · 数学 2023-03-01 Mohamed Abdelhamid , Aleksander Czekanski

In this paper, we study the asymptotic stability for the two-dimensional Navier-Stokes Boussinesq system around the Couette flow with small viscosity $\nu$ and small thermal diffusion $\mu$ in a finite channel. In particular, we prove that…

偏微分方程分析 · 数学 2022-01-19 Nader Masmoudi , Cuili Zhai , Weiren Zhao

This paper is concerned with the inhomogeneous incompressible Euler system. We establish a Duchon--Robert type approximation theorem for the distribution describing the local energy flux of bounded solutions. The velocity field is assumed…

偏微分方程分析 · 数学 2024-12-13 Marco Inversi , Alessandro Violini

Diffusive limit of the one-species Vlasov-Maxwell-Boltzmann system in perturbation framework still remains unsolved, due to the weaker time decay rate compared with the two-species Vlasov-Maxwell-Boltzmann system. By employing the weighted…

偏微分方程分析 · 数学 2024-06-06 Weijun Wu , Fujun Zhou , Weihua Gong , Yuan Xu

Fluid dynamic limit to compressible Euler equations from compressible Navier-Stokes equations and Boltzmann equation has been an active topic with limited success so far. In this paper, we consider the case when the solution of the Euler…

偏微分方程分析 · 数学 2010-11-10 Feimin Huang , Yi Wang , Tong Yang

Starting from the dynamical system model capturing the splitting-differentiation process of populations, we extend this notion to show how the speciation mechanism from a single species leads to the consideration of several well known…

偏微分方程分析 · 数学 2024-01-29 Gonzalo Galiano , Virginia Selgas

The flow of two macroscopically immiscible, viscous, incompressible fluids with unmatched densities is studied, where a transfer of mass between the constituents by phase transition is taken into account. To this end, two…

偏微分方程分析 · 数学 2025-05-09 Helmut Abels , Harald Garcke , Julia Wittmann

We study the minimizers of a magnetic 2D non-linear Schr\"odinger energy functional in a quadratic trapping potential, describing a rotating Bose-Einstein condensate. We derive an effective Thomas-Fermi-like model in the rapidly rotating…

数学物理 · 物理学 2024-09-18 Dinh-Thi Nguyen , Nicolas Rougerie

Convergence of particle systems to the Vlasov-Navier-Stokes equations is a difficult topic with only fragmentary results. Under a suitable modification of the classical Stokes drag force interaction, here a partial result in this direction…

概率论 · 数学 2018-07-31 Franco Flandoli , Marta Leocata , Cristiano Ricci

In this note, we propose the first mathematical derivation of a macroscopic Baer-Nunziato type system for compressible two-phase flows allowing two pressure state laws depending on the different phases. By doing so, we extend the results…

偏微分方程分析 · 数学 2020-12-14 Didier Bresch , Cosmin Burtea , Frédéric Lagoutière

Based on a Boltzmann-like traffic equation for aggressive drivers we construct in this paper a second-order continuum traffic model which is similar to the Navier-Stokes equations for viscous fluids by applying two well-known methods of…

数学物理 · 物理学 2010-12-01 W. Marques , A. R. Mendez

We study the asymptotic behavior of the isentropic Navier-Stokes system driven by a multiplicative stochastic forcing in the compressible regime, where the Mach number approaches zero. Our approach is based on the recently developed concept…

偏微分方程分析 · 数学 2017-01-03 Dominic Breit , Eduard Feireisl , Martina Hofmanova

We introduce the notion of relative entropy for the weak solutions of the compressible Navier-Stokes system. We show that any finite energy weak solution satisfies a relative entropy inequality for any pair of sufficiently smooth test…

偏微分方程分析 · 数学 2015-06-03 Eduard Feireisl , Bum Ja Jin , Antonin Novotny
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