Abstract
In this study, a digital twin analysis module capable of LID (Low Impact Development) interpretation for various rainfall scenarios was developed. The low-impact development digital twin model consists of a rainfall input module, a SWMM (Storm Water Management Model) -based LID analysis module, a reservoir tracking-based LID analysis module, and a post-processing module. Rainfall scenarios that can be applied in the developed model can simulate stochastic rainfall by frequency and daily heavy rainfall over the last 10 years. Additionally, the results of rainfall-loss-outflow for subwatersheds and inflow-outflow for total LID facilities (five types) are provided. If the LID DT (Digital Twin) simulator developed in this way is used, various water environment information such as the water circulation improvement and water quality reduction effects in the target area can be provided in a series of processes from the low-impact development facility planning stage to the operation management stage.
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