TY - GEN
T1 - Vortex induced vibration of three rigidly coupled cylinders in equilateral triangle arrangement at small spacing ratio
AU - Han, Peng
AU - Pan, Guang
AU - Jin, Zhihui
AU - Xia, Hui
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2019/1/7
Y1 - 2019/1/7
N2 - Vortex-Induced Vibration (VIV) of three rigidly coupled cylinders arranged in an equilateral-triangular pattern is numerically investigated. The spacing ratio is set as LlD=1.5. Simulations are carried out for flow incidence angles with alpha=0-{o}, alpha=30-{o}, alpha=60-{0} and the reduced velocity is set from 3 to 16 with a step increment of 1. The corresponding Reynolds number is about 3000-16000. Two-dimensional Reynolds-Averaged Navier-Stokes equations in conjunction with the SST k-omega turbulence model are used to simulate the turbulent flow. The vibration equations are solved by Newmark-beta algorithm by C Programming language. Numerical results show that the flow incidence angles and the reduced velocity strongly influence the response of the three cylinders including vibration amplitudes, lock-in range, frequency response and vortex shedding mode.
AB - Vortex-Induced Vibration (VIV) of three rigidly coupled cylinders arranged in an equilateral-triangular pattern is numerically investigated. The spacing ratio is set as LlD=1.5. Simulations are carried out for flow incidence angles with alpha=0-{o}, alpha=30-{o}, alpha=60-{0} and the reduced velocity is set from 3 to 16 with a step increment of 1. The corresponding Reynolds number is about 3000-16000. Two-dimensional Reynolds-Averaged Navier-Stokes equations in conjunction with the SST k-omega turbulence model are used to simulate the turbulent flow. The vibration equations are solved by Newmark-beta algorithm by C Programming language. Numerical results show that the flow incidence angles and the reduced velocity strongly influence the response of the three cylinders including vibration amplitudes, lock-in range, frequency response and vortex shedding mode.
KW - Numerical simulation
KW - Small spacing ratio
KW - Three rigidly coupled cylinders
KW - Vortex shedding
KW - Vortex-Induced Vibration (VIV)
UR - http://www.scopus.com/inward/record.url?scp=85061838429&partnerID=8YFLogxK
U2 - 10.1109/OCEANS.2018.8604541
DO - 10.1109/OCEANS.2018.8604541
M3 - 会议稿件
AN - SCOPUS:85061838429
T3 - OCEANS 2018 MTS/IEEE Charleston, OCEAN 2018
BT - OCEANS 2018 MTS/IEEE Charleston, OCEAN 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - OCEANS 2018 MTS/IEEE Charleston, OCEANS 2018
Y2 - 22 October 2018 through 25 October 2018
ER -
