METHOD FOR CALCULATING OUTFLOW FLUX IN CONSIDERATION OF RAINWATER DRAINAGE SYSTEM

摘要

The present invention relates to a method for calculating outflow flux in consideration of a rainwater drainage system, which comprises the following steps: (a) calculating the flowing direction of water from a digital elevation model (DEM) by using terrain; (b) setting seed cells from underground drainage facility information; (c) calculating the parameters of an infiltration model from an effective porosity, statured hydraulic conductivity, pore size distribution index, and degree of initial absorption; (d) applying rainfall to the parameters to calculate the flowing direction of the user by using a water level; and (e) calculating the depth and speed of flowing water in each cell over time, wherein the step (d) is repetitively performed after the step (e). Accordingly, the method for calculating outflow flux in consideration of a rainwater drainage system increases a working speed more than that of an existing method and calculates the flowing direction of water in consideration of the water level at each moment, thereby increasing accuracy and reliability.;COPYRIGHT KIPO 2019