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利用高速水力学国家重．或实验室的激光测速仪对三种不同粗糙度、两种反弧半径的溢流反弧段的水流流速进行了测量，对边界居特性进行了分析研究。试验分析表明，水流流态、壁面粗糙度和壁面曲率对边界居特性有明显的影响。
Use of high-speed hydraulics national weight. Or laboratory laser velocimeter were used to measure the flow velocities of three different roughness and two anti-arc radius of the overflow anti-arc section, and the boundary properties were analyzed. Experimental analysis shows that water flow pattern, wall roughness and wall curvature have obvious influence on the boundary properties.