闸下废旧轮胎消能防冲的三维数值模拟  

Three-dimensional numerical simulation of scrap tires in energy dissipation and erosion control under sluice

作　　者：史国庆[1] 文恒[2] 

机构地区：[1]咸阳职业技术学院建筑学院,陕西咸阳712000 [2]内蒙古农业大学水利与土木建筑工程学院,内蒙古呼和浩特010018

出　　处：《水利水电科技进展》2015年第2期24-27,共4页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金(50169001);咸阳职业技术学院2013年院级科研基金(2013KYB05)

摘　　要：为了进一步揭示闸下应用废旧轮胎消能防冲时的水流形态,采用RNG k-ε湍流模型对加糙后的流场进行模拟计算,并采用流体体积分数法对自由水面进行跟踪,得到流场内的水、气相体积、速度、压力等分布,并与模型试验实测结果进行对比分析。分析结果表明,计算结果与模型试验实测结果吻合较好,说明模型能很好地应用于加糙后的流场模拟计算。In order to reveal the flow shape of scrap tires in energy dissipation and erosion control under sluice,the RNG k-ε turbulence model is applied to simulate the flow where the apron was roughened by scrap tires. The volume of fluid（ VOF） method for water-air two-phase flow is introduced into the tracking of the free surface. The distributions of water,gas volume,velocity and pressure were obtained through simulation. Contrast analyzed,the result is in good agreement with experimental data and shows that the VOF method is feasible for the simulation of roughened flow.

关 键 词：废旧轮胎 加糙体 RNG k-ε湍流模型 消能 防冲 数值模拟 

分 类 号：TV653[水利工程—水利水电工程]