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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Remarks on the vanishing viscosity process of state-constraint Hamilton-Jacobi equations
状态约束 哈密尔顿-雅可比方程 黏度消失
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2023/4/21
We investigate the convergence rate in the vanishing viscosity process of the solutions to the subquadratic state-constraint Hamilton-Jacobi equations. We give two different proofs of the fact that, f...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Optimal decay rates on compressible Navier-Stokes equations with degenerate viscosity and vacuum
简并粘度 真空 可压缩 NS方程 最佳衰减率
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2023/4/18
In this talk, we consider the large time behavior of the weak solution to the free boundary problem for one-dimensional isentropic compressible Navier-Stokes equations with degenerate viscosity and va...
The Role of Projectile Configuration and Viscosity on the Launch Dynamics of Supersonic Projectiles
Role of Projectile Configuration and Viscosity Launch Dynamics Supersonic Projectiles Fluid Dynamics
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2012/4/24
The aerodynamics of a projectile launched from barrels of various devices is quite complicated due to its interactions with the unsteady flow field around it. A computational study using moving grid m...
A simple eddy viscosity formulation for turbulent boundary layers near smooth walls
Momentum equation Model equation A near-wall eddy viscosity formulation
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2011/8/29
The aim of this study is to improve the prediction of near-wall mean streamwise velocity pro le U+ by using a simple method. The U+ pro le is obtained by solving the momentum equation which is written...