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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Fast and accurate solvers for the three dimensional elastic scattering problems
三维弹性 散射 求解器 弹性波
2023/4/26
The scattering problems for elastic waves have recently received ever increasing attentions in both the engineering and mathematical communities for their important applications in geophysics and seis...
Three-Dimensional Unsteady Multi-stage Turbomachinery Simulations using the Harmonic Balance Technique
Three-Dimensional Unsteady Multi-stage Turbomachinery Simulations Harmonic Balance Technique
2015/7/2
In this paper, we propose an extension of the Harmonic Balance method for three dimensional, unsteady, multi-stage turbomachinery problems modeled by the Unsteady Reynolds-Averaged Navier-Stokes (URAN...
Optimum Shape Design for Unsteady Three-Dimensional Viscous Flows Using a Nonlinear Frequency-Domain Method
Optimum Shape Design Unsteady Three-Dimensional Viscous Flows Nonlinear Frequency-Domain Method
2015/7/2
This paper presents an adjoint method for the optimum shape design of unsteady three-dimensional viscousflows.The goal is to develop a set of discrete unsteady adjoint equations and the correspo...
NON-LINEAR FREQUENCY DOMAIN BASED OPTIMUM SHAPE DESIGN FOR UNSTEADY THREE-DIMENSIONAL FLOWS
NON-LINEAR FREQUENCY DOMAIN BASED OPTIMUM SHAPE DESIGN UNSTEADY THREE-DIMENSIONAL FLOWS
2015/7/2
This paper presents an adjoint method for the optimum shape design of unsteady flows. The goal is to develop a set of discrete unsteady adjoint equations and the corresponding boundary condition...
Sensitivity analysis of three-dimensional salinity simulations in North San Francisco Bay using the unstructured-grid SUNTANS model
Unstructured grid Numerical diffusion Scalar advection scheme Turbulence model Grid resolution
2015/6/30
The unstructured-grid SUNTANS model is applied to San Francisco Bay using a grid with an average resolution of 50 m. This accurately resolves tidal hydrodynamics in a domain that extends from the Paci...
Fractal structure of a three dimensional Brownian motion on an attractive plane
dimensional Brownian motion Statistical Mechanics Mathematical Physics
2011/10/9
Abstract: Consider a Brownian particle in three dimensions which is attracted by a plane with a strength proportional to some dimensionless parameter $\alpha$. We investigate the fractal spatial struc...
Numerical study on three-dimensional flow field of continuously rotating detonation in a toroidal chamber
continuously rotating detonation three-dimensional flow field structure numerical study detonation parameters deficit effects of wall geometries
2012/2/24
Gaseous detonation propagating in a toroidal chamber was numerically studied for hydrogen/oxygen/ni-trogen mixtures. The numerical method used is based on the three-dimensional Euler equations with de...
Steady Three-Dimensional Flow of a Walter's B' Fluid in a Vertical Channel
Walter's B0 fluid Vertical channel Viscoelasticity Injection
2009/10/12
Steady three-dimensional flow of a Walter's B0 fluid in a vertical channel was investigated. It is assumed that the fluid is injected into the channel through one side of the channel. The combined e e...
Steady Three-Dimensional Flow of a Second Grade Fluid towards a Stagnation Point at a Moving Flat Plate
Second grade fluid Stagnation point Viscoelasticity Boundary layer
2009/10/12
The problem considered here is the steady three-dimensional flow of a second grade fluid near the stagnation point of an infinite flat plate moving parallel to itself with constant velocity. The basic...
Three dimensional stochastic model of turbulence
Three dimensional stochastic model turbulence
2010/3/15
Three dimensional stochastic model of turbulence.