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24 results on '"Cai, Xinghui"'

10. Numerical simulations of semi-armor-piercing warhead penetrating aircraft carrier target

Author

Dong Sangqaing, Cai Xinghui, Wang Guoliang, Gao Yunliang, and Lu Jiangren

Subjects
Engineering (General). Civil engineering (General), TA1-2040
Abstract

FEM models of semi-armor-piercing warhead penetrating aircraft carrier deck are established, which are validated by related experimental data. Base on the models, the process of semi-armor-piercing warhead penetrating aircraft carrier deck with different incidence angles and attack angles are carried out. The results show that incidence angles have no remarkable influence on penetration capability of the projectile under the circumstance of zero attack angle. Ductility reaming damage mode and adiabatic plugging damage mode are exhibited in the penetration process. Attack angles have notable influence on penetration capability of the projectile. The FEM models and the results could provide reference for penetration effect research of semi-armor-piercing warhead penetrating aircraft carrier target.

Published
2015
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13. Numerical simulations of a fully developed liquid-metal magnetohydrodynamic flow in a circular duct

Author

Cai Xinghui, Dong Sanqiang, Wang Guoliang, Lu Jiangren, and Qiang Hongfu

Subjects
Mathematical optimization, Chemistry, Computation, Mechanics, Magnetic field, Physics::Fluid Dynamics, symbols.namesake, lcsh:TA1-2040, Kronecker delta, symbols, Duct (flow), Magnetohydrodynamic drive, Boundary value problem, Magnetohydrodynamics, Galerkin method, lcsh:Engineering (General). Civil engineering (General)
Abstract

In this paper, a kind of new meshless method, two-level radial point interpolation method, has been developed to analyze the fully developed liquid-metal Magnetohydrodynamic (MHD) flow under the externally applied magnetic field in a circular duct with thin conducting walls. This method applied the radial point interpolation method (RPIM) to solve the two levels Galerkin weak form formulations. As the shape functions from RPIM possess Kronecker delta function properties, the essential boundary conditions of MHD flow problems are easily to be enforced. Numerical simulations of MHD flow in the circular duct with partial conducting walls are carried out, showing that the method is very stable in the computation.

Published
2015

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