The model for non - linear long wave and the mild slope equation are respectively applied to simulation wave propagation on a classical topography for small size waters - submerged shoal with concentric contours . the differences between them in wave propagation are got through comparing the numerical solutions . and the results are accordant with actual cases 并将非线性长波传播模型和缓坡方程，分别应用于非线性作用较摘要强、地形为平底与圆形暗礁的组合这一经典物模实验，比较了二者应用于小尺度水域范围内波浪传播变形的具体差别。
