Wind Tunnel Study on Spanwise Correlation of Aerodynamic Forces on a 5:1 Rectangular Cylinder

Liu, Xiaobing; Yan, Cui; Liu, Qingkuan

doi:10.3850/978-981-07-8012-8_289

Cited by 2 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…us, the VIF has been assumed to be well correlated in the spanwise direction. At present, an amount of research on the spanwise correlation of VIF has been carried out using a rectangular section model with different side ratios [13][14][15][16][17]. e aerodynamic behavior of the rectangular cylinder is controlled by its side ratio (B/D).…”

Section: Introductionmentioning

confidence: 99%

“…Matsumoto et al [14] studied the effect of different incoming flow conditions on the spanwise correlation of fluctuating pressure on 5:1 rectangular cylinders in uniform flow, turbulent flow, and 2 dimensional vertically sinusoidal flow. Liu et al [16] found that the spanwise correlation of aerodynamic forces on the 5:1 rectangular cylinder decreases with the increase of the spanwise distance, and the correlations of fluctuating tap pressures are indeed different in the different regions of the cylinder surface. Ricciardelli [15] investigated the influence of different vibration regimes on the spanwise correlation of fluctuating pressure and VIF on the 5 : 1 rectangular cylinder and found that the spanwise correlation increases with the vibration amplitude.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Study on the Spanwise Correlation of Vortex‐Induced Force Using Large‐Scale Section Model

Maruyama

Han

et al. 2021

Shock and Vibration

View full text Add to dashboard Cite

To investigate the spanwise correlation of vortex-induced forces (VIF) of a typical section of a streamlined box girder, wind tunnel tests of simultaneous measurement of force and displacement responses of a sectional model were conducted in a smooth flow. The spanwise correlation of VIF and pressure coefficients on the measurement points of an oscillating main deck were analyzed in both the time domain and frequency domain, respectively. The research results indicated that the spanwise correlation of VIF and pressure coefficients on the measurement points were related to the amplitudes of vortex-induced vibration (VIV), both of them weakened with the increase of spanwise distance; the maximum value of spanwise correlation coefficient is situated at the ascending stage of the lock-in region, rather than at the extreme amplitude point. The amplitudes of VIV showed different impacts on the spanwise correlation of pressure coefficients on the measurement points of the upper and lower surfaces, for which the maximum value of the spanwise correlation coefficients is located at the extreme amplitude point and the ascending stage of the lock-in region, respectively. Furthermore, the spanwise correlation of the pressure coefficients decreases continually from the upstream to downstream of the main deck; large coherence of vortex-induced forces and pressure appears around the frequency of vortex shedding, and the coherence of VIF and pressure becomes smaller with the increase in the spanwise distance.

show abstract