IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 4 - HYDRO-ENVIRONMENT : A Refined Random Walk Simulation of Scalar Mixing in Vegetated-Open-Channel Flows
A Refined Random Walk Simulation of Scalar Mixing in Vegetated-Open-Channel Flows
Author : Xuefei Wu and Dongfang Liang
The scalar transport phenomena in two-dimensional environmental flows are studied using the random walk method. The Lagrangian model is first applied to some idealized problems, before being refined in investigating the mixing of the flows through vegetation. The longitudinal dispersion coefficients of the shear flows, with and without vegetation, are calculated. The simulation results show high accuracy of the developed random walk method, and indicate that the refined method of including the effects of vegetation is highly efficient for all the six test cases considered. The merit of the refined random walk method is highlighted by comparing its results with those of the original random walk method.
File Size : 1,032,648 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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