Abstract
A Galerkin type finite element method is presented to simulate the inundation in low-lying area. The moving boundary technique to express the flood front and the iteration to obtain the stable numerical solution are combined with the method.
The inundation in the low-lying area in Hamada city caused by the heavy rainfall of July 15, 1988, has been calculated using the presented simulation method. The peak values of flooded water level obtained from the calculated results agree well with the highest flood traces observed in the inundated area.
