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对高阶Boussinesq水波方程提出了两个改进方法 :( 1 )在该方程的高阶非线性项中引入一修正参数 ,以提高方程二阶传递函数的精度 ;( 2 )用一变换速度取代该方程中的水深平均深度 ,使变换后的方程的色散性精确到O(k8h8)阶 ,变浅作用性能从浅水到深水都具有更高的精度 ,方程二阶传递函数的精度也得到很大改善 .
Two improvements are proposed for the higher-order Boussinesq wave equation: (1) introducing a correction parameter into the higher-order nonlinearity term of the equation to improve the accuracy of the second-order transfer function; (2) replacing the The average depth of water in the equation makes the dispersion of the transformed equation accurate to O (k8h8) order, and the shallowing action has higher accuracy from shallow to deep water, and the accuracy of the second-order transfer function of the equation is also greatly improved .