Experiments and numerical simulations on transport of dissolved pollutants around spur dike

作     者：Li-ping CHEN Jun-cheng JIANG 

作者机构：College of Urban Construction and Safety Engineering Nanjing University of Technology Nanjing 210009 P. R. China 

出 版 物：《Water Science and Engineering》 (水科学与水工程（英文版）)

年 卷 期：2010年第3卷第3期

页      面：341-353页

核心收录：

学科分类：12[管理学] 1204[管理学-公共管理] 082803[工学-农业生物环境与能源工程] 081504[工学-水利水电工程] 08[工学] 0828[工学-农业工程] 0815[工学-水利工程] 120405[管理学-土地资源管理] 

基　　金：supported by the Eleventh Five-year Scientific and Technical Plan (Grant No. 2006BAK01B02-03) the Course Foundation of Nanjing University of Technology (Grant No. 39714004) 

主　　题：VOF spur dike dissolved pollutant numerical simulation experiment 

摘      要：The flow field around a spur dike has three-dimensional characteristics. In order to analyze the influence of the flow field on pollutant transport, based on a compressive volume of fluid （VOF） scheme, the three-dimensional transient compressive pollutant transport model （CPTM） and the cubic equation （CE） bounded differencing scheme were developed. For the calibration and validation of CPTM, laboratory experiments were carried out in a flume with a non-submerged spur dike. The spur dike was angled at 60°, 90°, and 120° from the upstream direction. The simulation results agreed with the experimental results. The simulations and experiments showed that the distribution of pollutant concentration was determined by circumfluence and the main flow. Concentration decay in the circumfluenee zone was slower than that in the main flow. Downstream of the spur dike, the concentration fluctuation became intensive with the increase of spur dike angle.