A Numerical Simulations and Optimizations of the Flow Field in TengZhou Quanshang Constructed Wetland

Abstract:

The flow field of constructed wetland plays an important role in wetland stabilization and efficient operation. TengZhou Quanshang constructed wetland was taken as the research object. The RNG k-ε two-equation turbulence model equations coupling with the volume of fluid (VOF) model are introduced to simulation the vegetation cover flow. And the flow velocities of 37 measured points in wetland were measured by using the ADV instrument. Then the simulation velocity was compared with the field measured velocity. The results are shown to be satisfactory, and basically meet the large-scale flow analysis requirements. The problems of flow field distribution on the initial state was analyzed and optimized. The uniformity of velocity in wetland increased, and water mobility improved after optimization. Our results provide guidance for the 2D water quality simulation, pollutants migration and combination of plant purification effect in natural and constructed wetland.

• Periodical: Applied Mechanics and Materials (Volumes 212-213)
• Pages: 201-204
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.212-213.201
• Online since: October 2012
• Authors: Wei Gang Xu, Hua Yong Zhang, Zhong Yu Wang, Wen Pei Huang
• Keywords: Constructed Wetland, Flow Field, Numerical Simulation, Porous Medium

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DOI: 10.1016/j.csr.2010.02.014