气流模型在水利科研中的应用

The Application of Air Flow Model in Hydraulic Research

本文探讨了气流模型的相似准则,比尺选择,设备仪器及模型加糙方法。气流模型具有尺寸小,试验周期短,成本低的特点,但试验精度较低。文章例举了应用气流模型的几个实例,并与相应的水流模型、数学模型及工程建成后的运行情况进行了对比。

This paper discusses the similarity criteria of air flow model, the selection of scale, equipment and instrument, and the calibration of model roughness. The air flow model size is smaller. It possesses the advantage of shorter testing time and lower cost, but the experimental accuracy is lower. The paper presents some examples of air flow model, and compares with corresponding water flow model, mathematical model and the prototype.