基于MATLAB的河道糙率计算

The Computation of Bed Roughness Using MATLAB

利用MATLAB强大的计算和绘图功能,编程计算了河道糙率,阐明了利用实测数据进行编程计算的全过程,并针对沈阳农业大学水利学院所做物理模型实验,计算了模型河段糙率,分析了其糙率值的合理性。同时,也利用本程序计算分析了局部水头损失系数对糙率的敏感度,提出局部水头损失对糙率也有很大的影响。

The bed roughness using the powerfully computational and plotting ability of MATLAB, illustrates all the progress about programme by using observation data. This program was applied to compute the bed roughness directing to the model test in Water Conservancy Institute in Shenyang Agricultural University. At the same time the sensitivity of bed roughness was calculated due to the coefficient of local head loss with this program and it was found that the coefficient of local head loss has great influence on bed roughness.