논문 국내 국제전문학술지(SCI급) VERTICAL STRUCTURE OF RIP-CURRENTS IN THE NEARSHORE CIRCULATION
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2016-03
- 저자명 정태화
- 학술지명 JOURNAL OF COASTAL RESEARCH
- 발행처명 COASTAL EDUCATION & RESEARCH FOUNDATION
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 3
홈페이지논문 초록 (Abstract)
A number of numerical models have been proposed over the past few decades to investigate rip currents in nearshore circulation zone s. Rip currents are the offshore-directed flow generated mainly by wave breaking and momentum transfer over varying topography and they are important in relation to the management of coastal preservation , maintenance, and development. To date, a number of rip current studies have been conducted using depth-integrated two-dimensional (2D ) or quasi-three-dimensional (3D) models based on wave-averaged formulations. However, compared with 3D hydrodynamic numer ical models, these models are not capable of providing the accurate ver tical profiles of current velocity. In this study, we examine th e vertical variation of velocities induced by rip-currents using a phase-resolving, 3D Non-HydrostaticWAVE model (NHWAVE) where an idealized rip channel is used to generate nearshore cir culation. The vertical variation of velocities for several locations is investigated and compared with a depth-integrated numerical model f or better understanding of depth-dependent hydrodynamics.