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FAQ/ Modeling of River Backwater Phenomena

Can you consider the impact of backwaters on tributaries at river confluences?

I would like to simulate a phenomenon in which the water level of the main river rises and cannot flow down from one tributary to the main river and the tributary overflows (backwater phenomenon).


It's possible.

The influence of backwater on tributaries can be considered.

For example, in the figure below, you can see that the flow rate of the main river (Tsurumi River) increases at the confluence with the tributaries (Yagami River and Hayabuchi River). In addition, it can be seen that there is almost no water level gradient in each tributary, and it is strongly influenced by the water level of the main river.

Figure: Example of the backwater effect

Last update: 2023-03-17