@inproceedings{ee614d50083240fdb41c65d54765a18d,
title = "Interaction between two vibrating cylinders immersed in fluid",
abstract = "The interaction between two adjacent cylinders immersed in a still fluid is studied numerically by solving the two-dimensional Navier-Stokes (NS) equations with the finite element method (FEM). The two cylinders both have one degree of freedom along the line through the cylinders' centres. One cylinder (C1) is subject to forced vibration, while the other elastically-mounted cylinder (C2) is allowed to vibrate freely in the disturbed fluid. Simulations are conducted at a constant Reynolds number of 100 based on the maximum velocity of C1, with the mass ratios m{\^a}ˆ— ranging from 1.5 to 2.5, the gap ratios G ranging from 0.2 to 1.0, C1's non-dimensional vibration amplitudes A1 ranging from 0.025 to 0.1, and C1's non-dimensional vibration frequency f1 ranging from 0.05 to 2.4. Through the FFT analyses of C2's displacement, the study finds that C2's frequency domain consist of two types of distinct frequency components: the first type is controlled by C1's vibration frequency, and the second equals C2's natural frequency in fluid. C2's vibration amplitude is significantly amplified while those two sets overlap each other. No vortex shedding takes place, which corresponds to regime A* for a single oscillating. Subtle differences are observed in the vorticity field with different f1.",
keywords = "cylinders, fluid dynamics, resonance, vibration",
author = "Zhonglu Lin and Dongfang Liang and Ming Zhao",
year = "2017",
language = "English",
isbn = "9781880653975",
publisher = "International Society of Offshore and Polar Engineers",
pages = "1190--1197",
booktitle = "Proceedings of the Twenty-seventh (2017) International Ocean and Polar Engineering Conference, San Francisco, California, USA, June 25-30, 2017",
note = "International Ocean and Polar Engineering Conference ; Conference date: 10-06-2018",
}