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Aerodynamic prediction of glaze ice accretion on airfoils and wing is studied using the Reynolds-averaged Navier-Stokes method. Two separation fixed turbulence models are developed considering the nonequilibrium characteristics of…

流体动力学 · 物理学 2021-05-27 Haoran Li , Yufei Zhang , Haixin Chen

We study the nonhomogeneous boundary value problem for Navier-Stokes equations of steady motion of a viscous incompressible fluid in a three-dimensional bounded multiply connected domain. We prove that this problem has a solution in some…

数学物理 · 物理学 2012-04-12 Mikhail Korobkov , Konstantin Pileckas , Remigio Russo

In this paper, we investigate the incompressible steady Navier-Stokes system with Navier slip boundary condition in a two-dimensional channel. As long as the width of cross-section of the channel grows more slowly than the linear growth,…

偏微分方程分析 · 数学 2022-11-23 Kaijian Sha , Yun Wang , Chunjing Xie

We study the fundamental problem of two gas species in two dimensional velocity space whose molecules collide as hard circles in the presence of a flat boundary and with dependence on only one space dimension. The case of three-dimensional…

偏微分方程分析 · 数学 2009-11-11 A. Sotirov

Analytical solutions in fluid dynamics can be used to elucidate the physics of complex flows and to serve as test cases for numerical models. In this work, we present the analytical solution for the acoustic boundary layer that develops…

流体动力学 · 物理学 2020-12-08 Evert Klaseboer , Qiang Sun , Derek Y. C. Chan

Time-dependent free surface problem for the incompressible Navier-Stokes equations which describes the motion of viscous incompressible fluid nearly half-space are considered. We obtain global well-posedness of the problem for a small…

偏微分方程分析 · 数学 2023-07-27 Takayoshi Ogawa , Senjo Shimizu

Adding some nontrivial terms composed from a microstructure, we prove the existence of a global-in-time weak solution, whose enstrophy is bounded for all the time, to an incompressible 3D Navier-Stokes-Fourier system for arbitrary initial…

偏微分方程分析 · 数学 2024-05-24 Zhongyang Gu , Xin Hu , Tsuyoshi Yoneda

We investigate the large-time behavior of solutions toward the combination of the boundary layer and 3-rarefaction waves to the outflow problem for the compressible non-isentropic Navier-Stokes equations coupling with the Maxwell equations…

偏微分方程分析 · 数学 2021-08-24 Huancheng Yao , Changjiang Zhu

This note studies the mechanism of turbulent energy cascade through an opportune bifurcations analysis of the Navier--Stokes equations, and furnishes explanations on the more significant characteristics of the turbulence. A statistical…

流体动力学 · 物理学 2015-03-09 Nicola de Divitiis

We study the flow of an incompressible liquid film down a wavy incline. Applying a Galerkin method with only one ansatz function to the Navier-Stokes equations we derive a second order weighted residual integral boundary layer equation,…

偏微分方程分析 · 数学 2015-05-13 Tobias Häcker , Hannes Uecker

We study the free boundary problem for a finite-depth layer of viscous incompressible fluid in arbitrary dimension, modeled by the Stokes or Navier-Stokes equations. In addition to the gravitational field acting in the bulk, the free…

偏微分方程分析 · 数学 2026-01-21 Seyed Abdolhamid Banihashemi , Huy Q. Nguyen

The paper examines the issue of existence of solutions to the steady Navier-Stokes equations in an exterior domain in $\mathbb{R}^2$. The system is studied with nonhomogeneous slip boundary conditions. The main results proves the existence…

数学物理 · 物理学 2008-03-11 Paweł Konieczny

We consider a spatially homogeneous advection-diffusion equation in which the diffusion tensor and drift velocity are time-independent, but otherwise general. We derive asymptotic expressions, valid at large distances from a steady point…

混沌动力学 · 物理学 2015-05-20 John Grant , Michael Wilkinson

The evolution of two isothermal, incompressible, immiscible fluids in a bounded domain is governed by Cahn-Hilliard-Navier-Stokes equations (CHNS System). In this work, we study the well-posedness results for the CHNS system with…

偏微分方程分析 · 数学 2025-10-28 Manika Bag , Tania Biswas , Sheetal Dharmatti

The Navier-Stokes-Fourier system is a well established model for describing the motion of viscous compressible heat-conducting fluids. We study the existence of time-periodic weak solutions and improve the known result in the following…

偏微分方程分析 · 数学 2014-04-08 Simon Axmann , Milan Pokorny

In this note we investigate the asymptotic behavior of plane shear thickening fluids around a bounded obstacle. Different from the Navier-Stokes case considered by Gilbarg-Weinberger in \cite{GW1978}, where the good structure of the…

偏微分方程分析 · 数学 2020-07-15 Shuai Li , Tao Wang , Wendong Wang

Oceanic waves registered by satellite observations often have curvilinear fronts and propagate over various currents. In this paper, we study long linear and weakly-nonlinear ring waves in a stratified fluid in the presence of a…

流体动力学 · 物理学 2016-04-12 K. R. Khusnutdinova , X. Zhang

This paper studies the incompressible limit of global strong solutions to the three-dimensional compressible Navier-Stokes equations associated with Navier's slip boundary condition, provided that the time derivatives, up to first order, of…

偏微分方程分析 · 数学 2013-09-03 Yaobin Ou , Dandan Ren

In this paper, we study the Navier-Stokes equations of compressible, barotropic flow posed in a bounded set in $\mathbb{R}^3$ with different boundary conditions. Specifically, we prove that the local-in-time smooth solution of the…

偏微分方程分析 · 数学 2020-11-24 Anthony Suen

Based on energy considerations, we derive a class of dynamic outflow boundary conditions for the incompressible Navier-Stokes equations, containing the well-known convective boundary condition but incorporating also the stress at the…

偏微分方程分析 · 数学 2017-08-29 Dieter Bothe , Takahito Kashiwabara , Matthias Köhne
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