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分析国标法中流速仪法测流计算方法的不足之处,并从河道断面模拟和部分面积计算两个方面予以改进。基于MATLAB软件平台,提供一份实现改进计算方法的程序。将改进方法应用于鄂西山溪河流古夫河,对汇入其下游古洞口水库的水量进行预测。应用实例表明,改进的流速仪法测流计算方法断面模拟更真实,部分面积计算方法更精确,在山溪性河流流量测量中具有一定的适用性。
This paper analyzes the shortcomings of the method of flow measurement by flowmeter in national standard method, and improves it from two aspects: river channel section simulation and partial area calculation. Based on the MATLAB software platform, provide a program to improve the calculation method. The improved method is applied to the Khufu River in the Shanxi Creek and western Hubei Province to predict the amount of water remitted to the downstream Kudongkou Reservoir. The application examples show that the improved flowmeter method is more realistic and the calculation method of some area is more accurate. It has some applicability in flow measurement of mountain stream.