Algebraic-Stress Turbulent Model of Planar 2-D Pollutant Transportation in Curvilinear Coordinates  

作　　者：Wu Xiuguang Huang Shichang Shen Yongming Y K Guo 

机构地区：[1]Zhejiang Institute of Hydraulics ＆ Estuary, Hangzhou 310020 [2]State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 1160241 [3]Department of Engineering, University of Aberdeen, Aberdeen AB24 3UE, UK

出　　处：《工程科学（英文版）》2005年第3期70-74,共5页Engineering Sciences

基　　金：TheNationalScienceFundforDistinguishedYoungScholars(GrantNo.50125924)andtheNationalNaturalScienceFoundationofChina(GrantNo.50379001andNo.10332050)

摘　　要：The shallow-water equations and pollutant convective-diffusive equation are transformed into curvilinear coordinate system. The anisotropic algebraic-stress turbulent model is introduced to simulate the turbulence items, and algebraic-stress turbulent model of planar 2-D pollutant convective-diffusive in curvilinear coordinates is build. The meandering channel with measured data of concentration in lab is adopted to validate the model, and the distribution figure of pollutant concentration field calculated through this model and that of the k-ε model, which show the model is superior to k-ε turbulent model in dealing with anisotropy character of flow.The shallow-water equations and pollutant convective-diffusive equation are transformed into curvilinear coordinate system. The anisotropic algebraic-stress turbulent model is introduced to simulate the turbulence items, and algebraic-stress turbulent model of planar 2-D pollutant convective-diffusive in curvilinear coordinates is build. The meandering channel with measured data of concentration in lab is adopted to validate the model, and the distribution figure of pollutant concentration field calculated through this model and that of the k - model, which show the model is superior to k -ε turbulent model in dealing with anisotropy character of flow.

关 键 词：湍流模型 污染物质 曲线配合 各向异性 k-ε模型 

分 类 号：O357.5[理学—流体力学]