摘要
利用数值模拟技术对环翼式桥墩周围流场进行数值计算。采用VOF多相流以及标准K-ε紊流模型描述不可压缩粘性流体的三维水动力学特性,计算了不同挡板位置时桥墩周围的流场变化情况。经过计算表明,不同挡板位置对z向流速影响大,当挡板大小与桥墩半径相同,挡板位置在水深1/3处,可以有效防止下潜水流对桥墩底部的冲刷。
Using numerical simulation techniques for numerical calculation of the flow field around the ring- wing pier. VOF multiphase flow and the standard K- ε turbulence model are used to describe the three- dimensional incompressible viscous fluid hydrodynamic characteristics,Calculating the different position of the baffle The changes of the flow field around the pier.After the calculation,The different baffle position has a great significance on the Z velocity,when the baffle position at the depth of 1 /3 of the water and the same radius and piers radius,it can effectively prevent the dive water erosion on the bottom of pier.
作者
黄永江
牟献友
白佳乐
HUANG Yongjiang MOU Xianyou BAI Jiale(Inner Mongolia agricultural university institute of water conservancy and civil engineering, Hohhot 010015, China Baotou Water Administration Supervision Branch, Baotou 014030, China)
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2016年第3期101-106,共6页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
国家自然科学基金资助项目(51369022)
关键词
环翼式桥墩
挡板位置
三维数值模拟
The ring-wing pier
the baffle position
three dimensional numerical simulation
