HEC-RAS和MIKE11在渠道水面线计算中的应用

Adoption of HEC-RAS and MIKE11 in the calculation of channel water surface line

HEC-RAS和MIKE11作为最常用的一维水流模型商用计算软件,在河道水面线计算中得到广泛应用。以国外某水电站尾水渠的水面线计算为例,分别采用HEC-RAS和MIKE11软件进行数值仿真计算,并对数值仿真计算成果和传统能量方程分段求和法水面线计算成果进行比较。结果说明以上两款软件相较于传统水面线计算方法,在渠道水面线计算中均能高效、精确的获得计算结果,可在设计中加以推广应用。

HEC-RAS and MIKE11 have been widely used in the calculation of river surface line as the most commonly used commercial calculation software for one-dimensional flow models.Taking the calculation of the water surface line of a hydropower station’s tailrace channel abroad as an example,the numerical simulation calculation is carried out by HEC-RAS and MIKE11 respectively,and the results of the numerical simulation calculation are compared with those of the traditional energy equation water surface line calculation method.The results show that the above two software can obtain the calculation results efficiently and accurately in the channel water surface line calculation compared with the traditional water surface line method,and can be popularized and applied in the design.