Rayleigh-Taylor不稳定性的SPH模拟  

SPH Simulation of Rayleigh-Taylor Instability

作　　者：汤文辉[1] 毛益明[2] 

机构地区：[1]国防科技大学理学院,湖南长沙410073 [2]解放军理工大学理学院,江苏南京211101

出　　处：《国防科技大学学报》2004年第1期21-23,共3页Journal of National University of Defense Technology

摘　　要：采用SPH方法模拟了流体界面的Rayleigh Taylor不稳定性,给出了界面初始扰动的发展过程,得到了蘑菇状的扰动图像,并对两种不同初始分布的扰动过程进行了比较。分析表明,计算结果合理,SPH方法适合于界面不稳定性的模拟。Rayleigh-Taylor instability of fluid interface was simulated by the smoothed particle Hydrodynamics (SPH) method. The growth of the interface instability was presented, and the fungus appearance of the instability was obtained. The characters showed by the numerical results indicate that the numerical results are logical, and the SPH method has the potential to simulate Rayleigh-Taylor instability.

关 键 词：RAYLEIGH-TAYLOR不稳定性 SPH方法 数值模拟 光滑粒子流体动力学 界面扰动 

分 类 号：O35[理学—流体力学]