摘要
就二元半圆头细长型墩体的压力分布进行了较系统的风洞模拟试验。根据试验结果,分析了雷诺数的影响和边壁效应;给出了多种情况下的沿体压力分布和与之相应的最小压力系数值;讨论了不同雷诺数时的流动图像;导得了二元半圆头细长型墩体绕流的最小压力系数 C_(pmin)与雷诺数 R_(eD)及阻塞度 T/b 间的估算关系式。
The wind tunnel modeling testing is conducted for investigating the pressure distribution of flow around Slender-Long sluice gate mound of two dimension semi-spherical head.The pressure distribution along body and minimum pressure coefficient at several conditions is given accord- ing to the testing result.The flow pattern for different Renold's number is discussed.The estimated formula among the minimum pressure coefficient,Renold's number and block degree is developed.
关键词
闸墩
墩体
绕流
水闸
压力分布
mound body
block degree
minimum pressure coefficient
