DEVELOPMENT OF INTEGRATED ANALYSIS METHOD FOR FLOOD FLOWS AND WAVES USING DEPTH-INTEGRATED FLOW MODEL

Abstract

 This paper aims to develope a practical integrated analysis method of flood flows and waves. For this purpose, the quasi three-dimensional flow analysis method(Q3D-FEBS) has been extended by reconsidering the basic equation system and its numerical procedure to be applicable to wave propagation and spilling wave breaker (Q3D-FEBS-FWI).The applicability of the Q3D-FEBS-FWI was examined in experiments of spilling wave breaker and wave-current interactions. From these studies, it was demonstrated that Q3D-FEBS-FWI can explain the characteristics of wave propagation, as well as the phase-averaged vertical velocity distribution in the surf zone and wave-current coexistence field. Additionally, the challenges for developing an integrated analysis method for flood flows and waves were clarified.