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相关论文: A viscoelastic flow model of Maxwell-type with a s…

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This paper is concerned with the diffusion of a fluid through a viscoelastic solid undergoing large deformations. Using ideas from the classical theory of mixtures and a thermodynamic framework based on the notion of maximization of the…

计算工程、金融与科学 · 计算机科学 2015-03-17 Satish Karra

Recently, many interesting features of the hydrodynamically coupled motions of the Brownian particles in a viscous fluid have been reported which are impossible for the uncoupled motions of the similar particles. However, it is expected…

软凝聚态物质 · 物理学 2018-05-17 Shuvojit Paul

It is shown that the dynamics of a two-dimensional crystal with a finite concentration of dislocations, as well as vacancy and interstitial defects, is governed by the hydrodynamic equations of a viscoelastic medium. At the longest length…

软凝聚态物质 · 物理学 2009-11-07 M. Cristina Marchetti , Karl Saunders

Viscoelastic rate-type fluids are popular models of choice in many applications involving flows of fluid-like materials with complex micro-structure. A well-developed mathematical theory for the most of these classical fluid models is…

偏微分方程分析 · 数学 2024-03-27 Miroslav Bulíček , Tomáš Los , Josef Málek

A novel route to instabilities and turbulence in fluid and plasma flows is presented in kinetic Vlasov-Maxwell model. New kind of flow instabilities is shown to arise due to the availability of new kinetic energy sources which are absent in…

等离子体物理 · 物理学 2015-06-19 Dhurjati Prasad Datta , Sudip Sen

We discuss a pure hyperbolic alternative to the Navier-Stokes equations, which are of parabolic type. As a result of the substitution of the concept of the viscosity coefficient by a microphysics-based temporal characteristic, particle…

流体动力学 · 物理学 2014-12-01 Ilya Peshkov , Evgeniy Romenski

It is shown how a complete set of hydrodynamic equations describing an unsteady three-dimensional viscous flow nearby a solid body, can be reduced to a closed system of surface equations using the method of dimension reduction of…

流体动力学 · 物理学 2014-08-04 Maxim Zaytsev , Vyacheslav Akkerman

We investigate a viscoelastic flow model with a generalized memory, in which a weak-singular component is introduced in the exponential convolution kernel of classical viscoelastic flow equations that remains untreated in the literature. We…

偏微分方程分析 · 数学 2022-03-02 Yingwen Guo , Xiangcheng Zheng

We develop new variational principles to study stability and equilibrium of axisymmetric flows. We show that there is an infinite number of steady state solutions. We show that these steady states maximize a (non-universal) $H$-function. We…

流体动力学 · 物理学 2016-08-16 Nicolas Leprovost , Bérengère Dubrulle , Pierre-Henri Chavanis

A family of the so-called Maxwell times which arises in the contexto of Higher-Order Generalized Hydrodynamics (also called Mesoscopic Hydro-Thermodynamics) is evidenced. This is done in the framework of a HOGH build within a statistical…

统计力学 · 物理学 2015-07-02 Clóves G. Rodrigues , Carlos A. B. Silva , José G. Ramos , Roberto Luzzi

Two, the most simple cases of special-relativistic flows of a viscous, incompressible fluid are considered: plane Couette flow and plane Poiseuille flow. Considering only the regular motion of the fluid we found the distribution of velocity…

plasm-ph · 物理学 2008-02-03 A. D. Rogava

A recent description of the highly viscous flow ascribes it to irreversible thermally activated Eshelby transitions, which transform a region of the undercooled liquid to a different structure with a different elastic misfit to the…

无序系统与神经网络 · 物理学 2018-08-15 U. Buchenau

A new concept of semi-compressible fluids is introduced for slightly compressible visco-elastic fluids (typically rather liquids than gasses) where mass density variations are negligible in some sense, while being directly controlled by…

偏微分方程分析 · 数学 2020-04-17 Tomáš Roubíček

We present a new asymptotic strategy for general micro-macro models which analyze complex viscoelastic fluids governed by coupled multiscale dynamics. In such models, the elastic stress appearing in the macroscopic continuum equation is…

数学物理 · 物理学 2025-12-22 Xuenan Li , Chun Liu , Di Qi

By using a formulation of motion equations for a viscous (compressible) fluid flow in terms of the vorticity and the rate of expansion as the main fluid dynamical variables, an approximation model is established for compressible flows with…

偏微分方程分析 · 数学 2023-08-17 Zhongmin Qian , Zihao Shen

We propose a unified approach to the formal long-wave reduction of several fluid models for thin-layer incompressible homogeneous flows driven by a constant external force like gravity. The procedure is based on a mathematical coherence…

数值分析 · 数学 2013-06-17 François Bouchut , Sébastien Boyaval

Exact relaxation times and eigenfunctions for a simple mechanical model of polymer dynamics are obtained using supersymmetry methods of quantum mechanics. The model includes the finite extensibility of the molecule and does not make use of…

软凝聚态物质 · 物理学 2009-10-31 P. Ilg , I. V. Karlin , S. Succi

We exploit a two-dimensional model [7], [6] and [1] describing the elastic behavior of the wall of a flexible blood vessel which takes interaction with surrounding muscle tissue and the 3D fluid flow into account. We study time periodic…

偏微分方程分析 · 数学 2021-07-28 V. Kozlov , S. Nazarov , G. Zavorokhin

The fundamental "two-fluid" model for describing plasma dynamics is given by the Euler-Maxwell system, in which compressible ion and electron fluids interact with their own self-consistent electromagnetic field. We prove global stability of…

偏微分方程分析 · 数学 2013-03-06 Yan Guo , Alexandru D. Ionescu , Benoit Pausader

The equations governing the flow of a viscous incompressible fluid around a rigid body that performs a prescribed time-periodic motion with constant axes of translation and rotation are investigated. Under the assumption that the period and…

偏微分方程分析 · 数学 2019-12-12 Thomas Eiter , Mads Kyed