염수와 담수의 혼합에 관한 3차원 수치모형

• 영문명: A three-dimensional Numerical Model for the Mixing of Saltwater and Freshwater
• 발행기관: 한국방재학회
• 저자명: 장원재 이승오 조용식 Jang, Won-Jae Lee, Seung-Oh Cho, Yong-Sik
• 간행물 정보: 『3. 한국방재학회 학술대회논문집』2008년, 233~236쪽, 전체 4쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 2008.02.28

영문 초록

To analyze the saline intrusion in the place, such as an estuary, the three-dimensional numerical model is developed. In this study, the advection terms of the governing equations are discretized by upwind scheme. By using an explicit scheme for the longitudinal direction and an implicit scheme for the vertical direction, the numerical model is free from the restriction of temporal step size caused by a relatively small grid ratio. The equation of state is used to consider the density, and the scalar transport equation for salinity is employed the third order TVD to scheme to prevent unphysical oscillation near discontinuity. In order to verify saline intrusion, the numerical model is conducted to compare the previous model in the lock exchange. The present model generally show a good agreement with the previous one.

키워드

TVD scheme scalar transport equation Lock exchange