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依据泥沙交换的统计理论,建立了非均匀沙扩散方程在床面的边界条件,它对一维、二维以至三维方程都是必须的,它将决定泥沙的冲淤.在此基础上积分二维扩散方程,得到了恢复饱和系数,阐述了它的特性,进而导出了在强平衡条件下的恢复饱和系数的理论表达式和相应的数字结果.最后给出了不平衡条件下恢复饱和系数的近似值和综合恢复饱和系数的数值.
Based on the statistical theory of sediment exchange, the boundary conditions of the inhomogeneous sand diffusion equation on the bed surface are established, which are necessary for the one-dimensional, two-dimensional and three-dimensional equations, which will determine the sedimentation of silt. The integral two-dimensional diffusion equation is obtained, and the saturation coefficient is obtained, and its characteristics are expounded. Then, the theoretical expression and the corresponding numerical results of the restoration saturation coefficient under the condition of strong equilibrium are derived. Finally, Approximation of coefficients and values of integrated restoration saturation coefficients.