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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Global large strong solutions to the 2D radially symmetric compressible Navier-Stokes equations on bounded domain
有界域 二维径向对称 可压缩Navier-Stokes方程 全局大强解
2023/12/11
In this talk, I will present our recent result the 2D radially symmetric compressible Navier-Stokes equations with density-dependent viscosity. Under the condition of beta>1, we prove the global exist...
Turbulent flow properties of large-scale vortex systems
gridfree turbulence vortex methods
2016/5/18
Large-scale computations of dynamically interacting vortex tubes forming filaments are performed with a view toward investigating their relationship to turbulent fluid flow. It is shown that the stati...
Finite element simulation of strain localization with large deformation: capturing strong discontinuity using a Petrov–Galerkin multiscale formulation
Finite element simulation strain localization with large deformation strong discontinuity Petrov–Galerkin multiscale formulation
2015/7/1
The finite element model for strain localization analysis developed in a previous work is generalized to the finite deformation regime. Strain enhancements via jumps in the displacement field are capt...
Large scale-free networks are not disassortative
Large scale-free networks disassortative Statistical Mechanics
2012/4/19
Mixing patterns in large self-organizing networks, such as the Internet, the World Wide Web, social and biological networks are often characterized by degree-degree correlations between neighbouring n...
Nonlinear superposition of direct and inverse cascades in two-dimensional turbulence forced at large and small scales
Nonlinear superposition direct inverse cascades two-dimensional turbulence
2011/8/4
Abstract: We inquire the properties of 2d Navier-Stokes turbulence simultaneously forced at small and large scales. The background motivation comes by observational results on atmospheric turbulence. ...
Scaling in large Prandtl number turbulent thermal convection
Turbulent fiows convection and heat transfer Turbulence simulation and modeling
2011/9/13
We study the scaling properties of heat transfer Nu in turbulent thermal convection at large Prandtl number Pr using a quasi-linear theory. We show that two regimes arise, depending on the Reynolds nu...
Application of color structured light pattern to measurement of large out-of-plane deformation
Out-of-plane deformation Surface contouring Color structured light Plate deflection Rectangular tube buckling
2012/2/28
Measurement of out-of-plane deformation is significant to understanding of the deflection mechanisms of the plate and tube structures. In this study, a new surface contouring technique with color stru...
Large deflection of flexible tapered functionally graded beam
Large deflection Flexible tapered functionally graded beam Analytical solution Experimental results Adomian-polynomials
2012/2/29
In this paper the semi-analytical analyses of the flexible cantilever tapered functionally graded beam under combined inclined end loading and intermediate loading are studied. In order to derive the ...
Numerical Computation of Pressure in a Rigid Rectangular Tank due to Large Amplitude Liquid Sloshing
Sloshing Free surface flow Navier-Stokes equations Volume of fluid technique
2009/10/13
In this study, sloshing inside partially filled enclosed baffled and unbaffled tanks was investigated. The fluid is assumed to be homogeneous, isotropic, viscous, and Newtonian and exhibiting only lim...
Outlines of the theory of large perturbations of linear systems with finite degrees of freedom
linear oscillator finite degrees of freedom large perturbation inverse eigenvalue
2010/3/15
The aim of this paper is to give closed, exact and general formulae for the eigenvalues and eigenvectors of a (in an arbitrarily large measure) perturbated conservative linear oscillator, which are al...
A Lagrangian for the large deflections of a rhombic plate
the large deflections rhombic plate
2010/3/15
A Lagrangian for the large deflections of a rhombic plate.
Large eddy simulation of dispersion of particles in turbulent jets
Large eddy simulation dispersion particles in turbulent jets
2010/3/15
Large eddy simulation of dispersion of particles in turbulent jets.