强激光与粒子束, 2003, 15 (1): 64, 网络出版: 2006-04-28
柱几何Rayleigh-Taylor不稳定性的数值模拟
Numerical simulations of Rayleigh-Taylor instability in cylindrical geometry
柱几何流体不稳定性 FCT算法 高精度格式 Hydrodynamic instability in cylindrical geometry FCT algorithm High-resolution scheme
摘要
给出了柱几何中流体力学方程组及其在数值模拟中采用的计算方法.对二维柱几何Rayleigh-Taylor不稳定性进行数值模拟,在线性阶段与线性理论符合得很好;不稳定性增长进入非线性区域的阈值依赖于界面的位置,并且明显不同于平面情况.
Abstract
The fluid equations and numerical algorithm are given to simulate twodimensional RayleighTaylor(RT) instability in cylindrical geometry in this paper. Simulation results agree well with the linear theory of RT instability. However the threshold at which nonlinear effects begin to become apparent in cylindrical geometry is clearly different from that in planar geometry and is related to the position of interface.
吴俊峰, 叶文华, 张维岩. 柱几何Rayleigh-Taylor不稳定性的数值模拟[J]. 强激光与粒子束, 2003, 15(1): 64. 吴俊峰, 叶文华, 张维岩. Numerical simulations of Rayleigh-Taylor instability in cylindrical geometry[J]. High Power Laser and Particle Beams, 2003, 15(1): 64.