CFD Approach to Flow-Induced Vibrations of Tandemly Placed Circular Cylinders
In the present study, we numerically examined the vibration characteristics of two cylinders which were placed tandemly in close vicinity of each other. The center-to-center pitch between the cylinders was four times the diameter of the cylinders. The cylinders were modeled as rigid bodies with two degrccs-offreedom in the simulation. The vibration frequencies of the cylinders were calculated, with the reduced velocity being varied. The vortex formation process was observed with regard to reduced velocity and structural damping. Also, the effects of the reduced velocity of the flow, the eigenfrequency of the cylinder, and the structural damping of the cylinder on the vibration response were discussed. A comparison was made between numerical results and the experimental ones obtained by means of the high-speed particle image velocimetry (Dynamic PIV) measurement.
Flow-Induced Vibration Fluid-Structure Interaction Numerical Analysis Tandem Cylinders Vortices
Naoki Nishikawa Satoshi Someya Koji Okamoto
The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8563, JAPAN Agency of Industrial Science and Technology, 1-2-1 Namiki, Tsukuba, Ibaraki, 305-8564, JAPAN The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, JAPAN
国际会议
The 7th International Symposium on Measurement Techniques for Multiphase Flows(第七届国际多相流测试技术会议)
天津
英文
59-66
2011-09-17（万方平台首次上网日期，不代表论文的发表时间）