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- W2214770981 abstract "In this research, dispersion coefficient tensor was calculated by using proposed formula by Alavian and Fischer to analyse change of dispersion coefficients in meandering channels. Velocity data was generated by using river analysis program RAMS. At first, Fischer's formula was calculated by triple integration of vertical-direction velocity distributions and eddy viscosity. Second formula suggested by Alavian is composed to transverse, longitudinal dispersion coefficients and magnitude of velocity. From the calculation result, dispersion coefficient tensors tend to change according to the relative direction of primary flow and, , -axis in Cartesian coordinate. Moreover, dispersion coefficient tensors tend to increase where the primary flow's maximum velocity occurs. Thus, dispersion effect will be more activated in where the maximum velocity occurs. In the aspect of application of dispersion coefficient tensor, Alavian's formula is more useful rather than Fischer's formula on the account of Alavian's formula use easier calculation process and needs less information about velocity distribution. For this reason, Alavian's formula is more applicable to 2-dimensional advection-dispersion model." @default.
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- W2214770981 date "2010-01-01" @default.
- W2214770981 modified "2023-09-24" @default.
- W2214770981 title "Analysis of Dispersion Tensor for 2-D Advection-dispersion Model in Meandering Channels" @default.
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