Abstract
When waves go upstream against gradually-increasing opposing current, wave breaking will occur and/or be blocked inthe case of strong current. Since wave action density is conserved in a current field, the wave action balance equation issuitable for the numerical model of wave-current interaction. In this study, the numerical simulation model based on thewave action balance equation is developed by using QUICK scheme in order to improve the accuracy of wave transformationdue to the current. The usability of the present model is verified, through the computation of the wave heightchange in the fields where the caustic exists or the area around the mouth of a river.
