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给出了激光烧蚀流体不稳定性计算程序ＥＵＬ２Ｄ的物理方程，介绍了计算中使用的活动网格和一些技术问题处理。ＥＵＬ２Ｄ程序的计算结果与Ｔａｋａｂｅ公式、ＦＡＳＴ２Ｄ程序和ＬＡＳＮＥＸ程序的结果较好符合。数值计算日本大阪大学激光烧蚀瑞利－泰勒不稳定性实验，再现了实验结果。发现了横向电子热传导烧蚀在长波长扰动的非线性瑞利－泰勒不稳定性演变中起重要作用。
The physical equations of laser ablation fluid instability calculation program EUL2D are given. The active grid used in the calculation and some technical problems are introduced. The result of EUL2D is in good agreement with the result of Takabe formula, FAST2D and LASNEX. Numerical calculation Laser ablation Rayleigh-Taylor instability experiment at Osaka University, Japan, reproduced the experimental results. It was found that transverse electron heat conduction ablation plays an important role in the nonlinear Rayleigh-Taylor instability evolution of long-wavelength perturbations.