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This paper concerns supersonic flows with nonzero vorticity governed by the steady Euler-Poisson system, under the coupled effects of the electric potential and the geometry of a convergent nozzle. By the coordinate rotation, the existence…

偏微分方程分析 · 数学 2026-05-01 Yuanyuan Xing , Zihao Zhang

For the three-dimensional steady non-isentropic compressible Euler system with friction, we show existence of a class of symmetric subsonic, supersonic and transonic-shock solutions in a straight duct with constant square-section. Such…

偏微分方程分析 · 数学 2018-11-02 Hairong Yuan , Qin Zhao

We establish the existence and uniqueness of the transonic shock solution for steady isentropic Euler system with an external force in a rectangular cylinder under the three-dimensional perturbations for the incoming supersonic flow, the…

偏微分方程分析 · 数学 2024-03-26 Shangkun Weng , Zihao Zhang , Yan Zhou

We are concerned with free boundary problems arising from the analysis of multidimensional transonic shock waves for the Euler equations in compressible fluid dynamics. In this expository paper, we survey some recent developments in the…

偏微分方程分析 · 数学 2022-03-29 Gui-Qiang G. Chen , Mikhail Feldman

This paper concerns the structural stability of smooth cylindrically symmetric supersonic Euler-Poisson flows in nozzles. Both three-dimensional and axisymmetric perturbations are considered. On one hand, we establish the existence and…

偏微分方程分析 · 数学 2025-03-21 Chunpeng Wang , Zihao Zhang

This paper concerns the existence of transonic shock solutions to the 2-D steady compressible Euler system in an almost flat finite nozzle ( in the sense that it is a generic small perturbation of a flat one ), under physical boundary…

偏微分方程分析 · 数学 2019-08-08 Beixiang Fang , Zhouping Xin

This paper concerns the existence and location of three-dimensional axisymmetric transonic shocks with large swirl velocity for shock solutions of the steady compressible full Euler system in a cylindrical nozzle with prescribed receiver…

偏微分方程分析 · 数学 2026-01-22 Beixiang Fang , Xin Gao , Wei Xiang , Qin Zhao

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

We established the existence, uniqueness and stability of subsonic flows past an airfoil with a vortex line at the trailing edge. Such a flow pattern is governed by the two dimensional steady compressible Euler equations. The vortex line…

偏微分方程分析 · 数学 2020-08-18 Jun Chen , Zhouping Xin , Aibin Zang

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

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 studies on smooth transonic flows with nonzero vorticity in De Laval nozzles for a quasi two dimensional steady Euler flow model which is a generalization of the classical quasi one dimensional model. First, the…

偏微分方程分析 · 数学 2024-05-29 Shangkun Weng , Zhouping Xin

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 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

In this paper we are concerned with the existence of transonic shocks for 2-D steady isothermal Euler flows in a horizontal flat nozzle under vertical gravity. In particular, we focus on the contribution of the vertical gravity in…

偏微分方程分析 · 数学 2021-12-07 Beixiang Fang , Xin Gao

We prove that for the two-dimensional steady complete compressible Euler system, with given uniform upcoming supersonic flows, the following three fundamental flow patterns (special solutions) in gas dynamics involving transonic shocks are…

偏微分方程分析 · 数学 2010-04-13 Beixiang Fang , Li Liu , Hairong Yuan

This paper is devoted to the structural stability of a transonic shock passing through a flat nozzle for two-dimensional steady compressible flows with an external force. We first establish the existence and uniqueness of one dimensional…

偏微分方程分析 · 数学 2026-01-14 Shangkun Weng , Wengang Yang

We are concerned with the unique existence of an axisymmetric supersonic solution with nonzero vorticity and nonzero angular momentum density for the steady Euler-Poisson system in three-dimensional divergent nozzles when prescribing the…

偏微分方程分析 · 数学 2025-12-25 Hyangdong Park

We establish the local uniqueness of steady transonic shock solutions with spherical symmetry for the three-dimensional full Euler equations. These transonic shock-fronts are important for understanding transonic shock phenomena in…

偏微分方程分析 · 数学 2011-12-09 Gui-Qiang G. Chen , Hairong Yuan

In this paper, we are trying to show the uniqueness of transonic shock solutions in an expanding nozzle under certain conditions and assumptions on the boundary data and the shock solution. The idea is to compare two transonic shock…

偏微分方程分析 · 数学 2025-02-11 Beixiang Fang , Xin Gao , Wei Xiang