Numerical model of flow and pollutant transportation in non-orthogonal curvilinear coordinates.
The planar 2D k-epsilon double equations' turbulence model was adopted and transformed into non-orthogonal curvilinear coordinates. The concentration convection-diffusion was introduced to planar 2D SIMPLEC algorithm of flow in non-orthogonal curvilinear coordinates. The numerical model of pollutant transportation in non-orthogonal curvilinear coordinates was constructed. The model was applied to simulate the flow and pollutant concentration fields. In the testing concentration field, two optimal operations of contamination discharging both along bank and in the centerline at the first bend of the meandering channel were adopted. Comparison with available data showed the model developed was successful, was valuable to engineering application.
Wu
Xiu-guang
XG
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China. wuxg_21cn@yahoo.com.cn
Shen
Yong-ming
YM
Zheng
Yong-hong
YH
Yang
Zhi-feng
ZF
D000465:Algorithms; D004058:Diffusion; D008962:Models, Theoretical; D045483:Rivers; D014874:Water Pollutants, Chemical / Q000032:analysis*
D014874:Water Pollutants, Chemical