基于WENO格式的天然河道丁坝群二维水流数值模拟  

Numerical simulation of 2D depth-averaged model for rivers with groins based on WENO schemes

作　　者：刘玉玲[1,2] 周孝德[1] 杨国丽[1] 

机构地区：[1]西安理工大学水利水电学院,陕西西安710048 [2]河海大学水电学院,南京210098

出　　处：《水动力学研究与进展（A辑）》2010年第1期93-98,共6页Chinese Journal of Hydrodynamics

基　　金：中国博士后基金(20090451163);江苏省博士后基金(0901006C);陕西省重点学科建设专项资金资助

摘　　要：本文应用高精度WENO(Weighted Essentially Non-oscillatory Schemes)格式结合有限体积法建立了河道丁坝群二维水流的数学模型。采用此模型对实际天然河道丁坝群水流水力特性进行了数值模拟,得到了流速场的分布,并与物理模型试验结果进行比较,表明这类格式精度高,稳定性能好,能够有效地计算复杂边界天然河道丁坝群二维水流水力特性问题。This paper is concerned with a mathematical model for simulating 2D river flow hydrodynamics with groins based on the WENO scheme and the Finite Volume Method.By using the proposed model,the flow property in the Baguazhou-reach with groins of the Yangtze River was calculated,and the flow velocity field distribution was obtained.The comparisons between the calculated and the measured data show that the WENO scheme has higher accuracy and better stability,and can effectively simulate the 2D river flow hydrodynamics with groins.

关 键 词：WENO格式 有限体积 数值模拟 河道丁坝群 

分 类 号：TV131.21[水利工程—水力学及河流动力学]