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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Steady Subsonic flows in High Dimensional Nozzle
高维喷管 稳态 亚音速流动
2023/11/15
In this talk, we present our result on subsonic irrotational flows in a multi-dimensional (n>1) infinitely long nozzle with variable cross sections. The flow is described by the inviscid potential equ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Some progress on steady Navier-Stokes system in a channel
通道 稳定 纳维-斯托克斯系统
2023/4/27
In this talk, we will discuss some recent progress on steady Navier-Stokes system in a channel, in particular, the problem posed by Leray on steady flows in channels. The existence and uniqueness of s...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Nonlinear structural stability and linear dynamic instability of transonic steady-states to a hydrodynamic model for semiconductors
跨音速稳态 非线性结构稳定性 线性动态不稳定性 半导体 流体动力学模型
2023/5/8
For unipolar hydrodynamic model of semiconductor device represented by Euler-Poisson equations, when the doping profile is supersonic, the existence of steady transonic shock solutions and C^\infty-sm...
Inferring stable genetic networks from steady-state data
Genetic network identi cation convex optimization semide
2015/8/7
Gene regulatory networks capture the interactions between genes and other cell substances, resulting from the fundamental biological process of transcription and translation. In some applications, the...
Efficient Relaxation Methods for High-Order Discretization of Steady Problems
Efficient Relaxation Methods High-Order Discretization Steady Problems
2015/7/3
We review the current status of solution methods for nonlinear systems arising from high-order discretization of steady compressible ow problems.
Fast preconditioned multigrid solution of the Euler and Navier–Stokes equations for steady, compressible
Euler equations implicit methods lower–upper schemes multigrid methods
2015/7/2
New versions of implicit algorithms are developed for the ecient solution of the Euler and Navier Stokes equations of compressible ow. The methods are based on a preconditioned, lower-upper (LU) impl...
How Many Steps are Required to Solve the Euler Equations of Steady,Compressible Flow:In Search of a Fast Solution Algorithm
Euler Equations Compressible Flow:Search Fast Solution Algorithm
2015/7/2
New versions of implicit algorithms are proposed for the efficient solution of the Euler equations of com pressible flow. The methods are based on a pre conditioned, Lower-Upper (LU) implem...
Acceleration of Convergence to a Periodic Steady State in Turbomachinery Flows
Acceleration Convergence Periodic Steady State Turbomachinery Flows
2015/7/2
This paper presents a technique used to accelerate the convergence of unsteady cal culations of time-periodic flows to a periodic steady state. The basis of the procedure is the use of the discr...
High-Order Numerical Algorithms for Steady and Unsteady Simulation of Viscous Compressible Flow with Shocks
Steady Unsteady Simulation
2015/6/18
Theoretical developments of flux reconstruction method
Unstructured high-order methods
The Flux Reconstruction approach
Energy Stable Flux Reconstruction schemes
Flux Reconstruction as Filtere...
Analysis of steady transonic isentropic flow in two dimensions
transonic isentropic flow aircraft affine transformation conformal mapping
2013/9/2
Firstly, this paper presents a new expression which changes the isentropic flow equation into Cauchy-Riemann quation, and the exact solution of subsonic flow around an arbitrary two dimensional body i...
Air Pollution Steady-State Advection-Diffusion Equation: The General Three-Dimensional Solution
Advection-Diffusion Equation Analytical Solution Laplace Transform Air Pollution Modeling Atmospheric Boundary Layer Eulerian Models
2013/3/11
Atmospheric air pollution turbulent fluxes can be assumed to be proportional to the mean concentration gradient. This assumption, along with the equation of continuity, leads to the advection-diffusio...
NOx Reduction on Fully Formulated Lean NOx Trap Catalysts Subjected to Simulated Road Aging: Insights from Steady-State Experiments（图）
lean NOx trap NOx storage-reduction catalyst steady state NOx reduction ceria-zirconia catalyst aging
2013/10/13
Fully formulated lean NOx trap (LNT) catalysts of the type Pt/Rh/BaO/Al2O3 were prepared with and without incorporation of CeO2-ZrO2 in the washcoat, and their NOx reduction behavior was evaluated in ...
Dependence of the Ion-Aerosol Equivalent Attachment Coefficient on the Ratio of Polar Conductivities in a Steady State
Aerosol Ion Attachment coefficient
2016/3/28
The article discusses certain theoretical problems of the diffusion charging of aerosol particles in a bipolar ion
environment. The ratio of polar conductivities, induced by cluster ions of either po...
Behaviors of real-time schedulers under resource modification and a steady scheme with bounded utilization
Scheduling real-time scheduler task arrival patterns simulation, dynamic priority random resource resource modification
2010/11/22
In this article we present an analysis for task models having random resource needs and different arrival patterns. In hard real-time environments like avionic systems or nuclear reactors, the inputs ...
Steady-State Queue Length Analysis of a Batch Arrival Queue under N-Policy with Single Vacation and Setup Times
Queue Length Recursion Expressions N Policy Setup
2013/1/29
This paper investigates the steady state property of queue length for a batch arrival queue under N-policy with single vacation and setup times. When the system becomes empty, the server is turned off...