一、原、模型之间的差距和现行的校正方法(一) 原、模型之间的差距美国不少船闸原型观测结果说明了原型与模型之间的差别,如表1中美国Bay Springs船闸原、模型部分水力参数的差别。我国相继对葛洲坝1号和2号船闸进行了原型观测。结果表明,葛洲坝2号船闸原型的流量系数提高了12%(阀门双边开启),出水孔段的阻力系数减少了50%以上。虽经糙率校正,这一段阻力系数仍有一 First, the gap between the original model and the current correction method (a) the original model gap between the United States a lot of prototype shiplock prototype observations illustrate the differences between the prototype and the model, as shown in Table 1 Bay Springs original lock , The model part of the hydraulic parameters of the difference. Our country has successively carried on the prototype observation to Gezhouba No.1 and No.2 shiplocks. The results show that the flow coefficient of Gezhouba No.2 shiplock prototype increased by 12% (valve bilateral open), the water hole section of the drag coefficient decreased by 50% or more. Although the roughness correction, this section of the resistance coefficient is still one