中文
相关论文

相关论文: Stability of Inverse Problems for Steady Supersoni…

200 篇论文

We are concerned with the structural stability of conical shocks in the three-dimensional steady supersonic flows past Lipschitz perturbed cones whose vertex angles are less than the critical angle. The flows under consideration are…

偏微分方程分析 · 数学 2021-05-25 Gui-Qiang G. Chen , Jie Kuang , Yongqian Zhang

We are concerned with the well-posedness of an inverse problem for determining the wedge boundary and associated two-dimensional steady supersonic Euler flow past the wedge, provided that the pressure distribution on the boundary surface of…

偏微分方程分析 · 数学 2024-09-30 Gui-Qiang G. Chen , Yun Pu , Yongqian Zhang

We investigate the steady inviscid compressible self-similar flows which depends only on the polar angle in spherical coordinates. It is shown that besides the purely supersonic and subsonic self-similar flows, there exists purely sonic…

偏微分方程分析 · 数学 2025-01-20 Shangkun Weng , Hongwei Yuan

When an upstream steady uniform supersonic flow impinges onto a symmetric straight-sided wedge, governed by the Euler equations, there are two possible steady oblique shock configurations if the wedge angle is less than the detachment angle…

偏微分方程分析 · 数学 2019-01-18 Gui-Qiang G. Chen

We are concerned with the two-dimensional steady supersonic reacting Euler flow past Lipschitz bending walls that are small perturbations of a convex one, and establish the existence of global entropy solutions when the total variation of…

偏微分方程分析 · 数学 2016-11-15 Gui-Qiang Chen , Jie Kuang , Yongqian Zhang

We are concerned with the stability of steady multi-wave configurations for the full Euler equations of compressible fluid flow. In this paper, we focus on the stability of steady four-wave configurations that are the solutions of the…

偏微分方程分析 · 数学 2018-07-19 Gui-Qiang G. Chen , Matthew Rigby

For a two-dimensional steady supersonic Euler flow past a convex cornered wall with right angle, a characteristic discontinuity (vortex sheet and/or entropy wave) is generated, which separates the supersonic flow from the gas at rest (hence…

偏微分方程分析 · 数学 2015-06-11 Gui-Qiang G. Chen , Vaibhav Kukreja , Hairong Yuan

We study the well-posedness of compressible vortex sheets and entropy waves in two-dimensional steady supersonic Euler flows over Lipschitz walls with $BV$ incoming flows. Both the Lipschitz wall of $BV$ tangential angle function and the…

偏微分方程分析 · 数学 2022-04-27 Gui-Qiang G. Chen , Vaibhav Kukreja

We establish the global existence and stability of a three-dimensional supersonic conic shock wave for a perturbed steady supersonic flow past an infinitely long circular cone with a sharp angle. The flow is described by a 3-D steady…

偏微分方程分析 · 数学 2011-10-05 Jun Li , Ingo Witt , Huicheng Yin

We are concerned with global steady subsonic flows through general infinitely long nozzles for the full Euler equations. The problem is formulated as a boundary value problem in the unbounded domain for a nonlinear elliptic equation of…

偏微分方程分析 · 数学 2012-04-10 Gui-Qiang Chen , Xuemei Deng , Wei Xiang

This paper concerns the inverse source problems for the time-harmonic elastic and electromagnetic wave equations. The goal is to determine the external force and the electric current density from boundary measurements of the radiated wave…

偏微分方程分析 · 数学 2018-08-17 Gang Bao , Peijun Li , Yue Zhao

For a supersonic Euler flow past a straight wedge whose vertex angle is less than the extreme angle, there exists a shock-front emanating from the wedge vertex, and the shock-front is usually strong especially when the vertex angle of the…

偏微分方程分析 · 数学 2007-05-23 Gui-Qiang Chen , Tian-Hong Li

This paper concerns smooth supersonic flows with Lipschitz continuous speed in two-dimensional infinite expanding nozzles, which are governed by a quasilinear hyperbolic equation being singular at the sonic and vacuum state. The flow…

偏微分方程分析 · 数学 2014-10-16 Chunpeng Wang , Zhouping Xin

For an upstream supersonic flow past a straight-sided cone in $\R^3$ whose vertex angle is less than the critical angle, a transonic (supersonic-subsonic) shock-front attached to the cone vertex can be formed in the flow. In this paper we…

偏微分方程分析 · 数学 2016-03-15 Gui-Qiang Chen , Beixiang Fang

In this paper, we established the global existence of supersonic entropy solutions with a strong contact discontinuity over Lipschitz wall governed by the two-dimensional steady exothermically reacting Euler equations, when the total…

偏微分方程分析 · 数学 2017-09-12 Wei Xiang , Yongqian Zhang , Qin Zhao

This paper concerns the structural stability of smooth cylindrically symmetric transonic flows in a concentric cylinder. Both cylindrical and axi-symmetric perturbations are considered. The governing system here is of mixed…

偏微分方程分析 · 数学 2021-01-05 Shangkun Weng , Zhouping Xin , Hongwei Yuan

In this paper, we first investigate the mathematical aspects of supersonic flow of a Chaplygin gas past a conical wing with diamond-shaped cross sections in the case of a shock wave detached from the leading edges. The flow under…

偏微分方程分析 · 数学 2026-01-16 Bingsong Long

This paper is devoted to the well-posedness theory of piston problem for compressible {combustion} Euler flows with physical ignition condition. A significant combustion phenomena called detonation will occur provided the reactant is…

偏微分方程分析 · 数学 2022-03-04 Kai Hu , Jie Kuang

We are concerned with the global existence of entropy solutions of the two-dimensional steady Euler equations for an ideal gas, which undergoes a one-step exothermic chemical reaction under the Arrhenius-type kinetics. The reaction rate…

偏微分方程分析 · 数学 2013-11-07 Gui-Qiang Chen , Changguo Xiao , Yongqian Zhang

In this paper, we study the global existence of steady subsonic Euler flows through infinitely long nozzles without the assumption of irrotationality. It is shown that when the variation of Bernoulli's function in the upstream is…

偏微分方程分析 · 数学 2009-07-21 Chunjing Xie , Zhouping Xin
‹ 上一页 1 2 3 10 下一页 ›