摘要
给出了不同情况下多种波长的烧蚀瑞利－泰勒不稳定性线性增长率的二维计算结果，并与Ｔａｋａｂｅ公式和Ｓａｎｚ公式进行了比较，最后给出了单模激光烧蚀ＲＴＩ非线性发展行为的数值结果。线性增长率的二维计算结果很好验证了Ｓａｎｚ公式，表明β值应是２，不是３。当烧蚀速度较大或烧蚀面较宽时，用Ｔａｋａｂｅ公式估计的烧蚀ＲＴＩ线性增长率与二维计算值明显不符。
Linear RTI growth rates simulated by EUL2D at various cases with different perturbation wavelengths are given, and are compared with Takabe formula and Sanz formula. Numerical results of single mode nonlinear RTI evolution with and without electron conduction are compared. 2D simulated results of linear RTI growth rates are quite good agreement with the Sanz formula. The Takabe formula is not agreements with 2D simulations at larger ablative velocity or wider ablative surface.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
1998年第4期567-572,共6页
High Power Laser and Particle Beams
基金
国家863惯性约束聚变领域及青年基金
关键词
烧蚀致稳
流体不稳定性
激光
RT
非线性
Rayleigh-Taylor instability, ablative stabilization, numerical simulation of hydrodynamic instability
