Fusion is an ideal clean energy for human being utilized in the future. Much more significant research progress for such new energy exploited in a limited finite space of the high temperature plasma flow constrained b...Fusion is an ideal clean energy for human being utilized in the future. Much more significant research progress for such new energy exploited in a limited finite space of the high temperature plasma flow constrained by strong magnetic fields of superconducting magnets has been achieved on Tokamak research, which comes to a new era with the international joint efforts from China, Europe, India, Japan, Korea, Russia and United States for building the international thermonuclear experimental reactor (ITER). The plasma chamber and magnets are key components of a fusion power reactor system.展开更多
A numerical method for simulating nonlinear fluid-rigid structure interaction problems is developed. The structure is assumed to undergo large rigid body motions and the fluid flow is governed by nonlinear, viscous or...A numerical method for simulating nonlinear fluid-rigid structure interaction problems is developed. The structure is assumed to undergo large rigid body motions and the fluid flow is governed by nonlinear, viscous or non-viscous, field equations with nonlinear boundary conditions applied to the free surface and fluid-solid interaction interfaces. An Arbitrary-LagrangianEulerian (ALE) mesh system is used to construct the numerical model. A multi-block numerical scheme of study is adopted allowing for the relative motion between moving overset grids, which are independent of one another. This provides a convenient method to overcome the difficulties in matching fluid meshes with large solid motions. Nonlinear numerical equations describing nonlinear fluid-solid interaction dynamics are derived through a numerical discretization scheme of study. A coupling iteration process is used to solve these numerical equations. Numerical examples are presented to demonstrate applications of the model developed.展开更多
文摘Fusion is an ideal clean energy for human being utilized in the future. Much more significant research progress for such new energy exploited in a limited finite space of the high temperature plasma flow constrained by strong magnetic fields of superconducting magnets has been achieved on Tokamak research, which comes to a new era with the international joint efforts from China, Europe, India, Japan, Korea, Russia and United States for building the international thermonuclear experimental reactor (ITER). The plasma chamber and magnets are key components of a fusion power reactor system.
文摘A numerical method for simulating nonlinear fluid-rigid structure interaction problems is developed. The structure is assumed to undergo large rigid body motions and the fluid flow is governed by nonlinear, viscous or non-viscous, field equations with nonlinear boundary conditions applied to the free surface and fluid-solid interaction interfaces. An Arbitrary-LagrangianEulerian (ALE) mesh system is used to construct the numerical model. A multi-block numerical scheme of study is adopted allowing for the relative motion between moving overset grids, which are independent of one another. This provides a convenient method to overcome the difficulties in matching fluid meshes with large solid motions. Nonlinear numerical equations describing nonlinear fluid-solid interaction dynamics are derived through a numerical discretization scheme of study. A coupling iteration process is used to solve these numerical equations. Numerical examples are presented to demonstrate applications of the model developed.
