非线性驻波现象的数值模拟与实验结果的比较

A comparison of numerical simulation with experimental results for nonlinear standing wave phenomena

强非线性驻波实验研究发现很多重要的物理现象，如高次谐波成倍增长、饱和、分岔和混沌等。采用Euler方程和MacCormack四阶精度差分方法，成功地数值模拟了非线性驻波高次谐波成倍增长和饱和现象，并与相应的实验结果作了详细比较，符合很好。

It was shown that there were a lot of important physical phenomena from experimentalstudy of strong nonlinear standing waves, such as multipling growth of higher hamonics, suturation ofhamonics, bifurcation, and chaos etc. By use of Euler equtions and MacCormack fourth order differencemethod, the numerical simulation for phenomena of multipling growth and suturation of higher hamonicshave been carried out successfully in the paper. A comparison between numerical simulation and therelevant experimental results has been made in detail. It is shown that they are in good accordance.