Analysis of Flow Around Multi-Circular Cylinders Using a Numerical Model

J. Ocean Eng. Technol. 2006;20(2):29-35.

Lee Sang-Hwa;Park Jung-Ho;

Division of Civil and Ocean Engineering, Dong-A University;Graduate School of Civil Engineering, Dong-A University;

수치모형을 이용한 다원주 주위의 유동 해석

이상화;박정호;

동아대학교 토목.해양 공학부;동아대학교 토목공학과 대학원;

Keywords: Flow pattern, Multi-circular cylinder, Vortex shedding, FLUENT, Flow visualization Installation

핵심용어: 흐름 상태, 다원주, 보오텍스 박리, 유동가시화 장치

Abstract

The flow patterns around multi-circular cylinders are studies, in order to obtain a global view on the structure of wave control and circulation of sea flow in coastal region. The flow force depends upon the vortex shedding exerted on the structure, especially how the vortex shedding affects the erosion when the structure sets on the sand bottom. Therefore, it is necessary that the flow pattern be hocked. In order to simulate the flow around multi-circular cylinders, the CFX and FLUENT of the computational fluid dynamics (CFD) program were used and compared with the experimental results of the flow visualization installation. The phenomena of flow around the multi-cylinders will be applied to fundamental data for predicting the flow force acting against the structure, erosion and sedimentation around cylinders in arrangement.