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J. Ocean Eng. Technol. 2004;18(4):1-7.
A Study on the Development of a Three-dimensional Measurement System for Flow-Structure Interaction Using Digital Image Processing
DOH DEOG-HEE;JO HYO-JAE;SANG JI-WOONG;HWANG TAE-GYU;CHO YONG-BEOM;PYEONTN YONG-BEOM;
Division of Mechanical and Information Eng., Korea Maritime University;Division of Marine Systems Eng., Korea Maritime University;Dept. of Mechanical Eng. Graduate School, Korea Maritime University;Dept. of Mechanical Eng. Graduate School, Korea Maritime
디지털영상처리기술을 이용한 비접촉식 유체-구조물 연동운동 3차원 측정시스템 개발에 관한 연구
도덕희;조효제;상지웅;황태규;조용범;편용범;
한국해양대학교 기계정보공학부;한국해양대학교 해양시스템공학부;한국해양대학교 대학원 기계공학과;한국해양대학교 대학원 기계공학과;한국해양대학교 대학원 기계공학과;(주)티엔텍;
Key Words: Flow-Structure Interaction, Four CCD Camera, Motion of Vertical Cylinder, Flow Field 3D Measurement
핵심용어: 유체-구조연동운동, 4대 카메라, 직립원통형 실린더 운동, 유동장 3차원 측정
Abstract
A simultaneous measurement system that can analyze the flow-structure interaction has been developed. This system consists of four CCD cameras, two for capturing instantaneous flow fields and two for tracking a solid body. The three-dimensional vector fields around a cylinder are measured, while the motion of the cylinder forced by the flow field is measured, simultaneously, with the constructed system. The cylinder is suspended in the working fluid of a water channel, and the surface of the working fluid is forced sinusoidally to make the cylinder bounced. Reynolds number for the mean main stream is about 3500. The interaction between the flow fields and the cylinder motion is examined quantitatively.


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