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This paper carries out the experimental research and analysis on the vortex-excited vibration suppression effect
of the spiral stripe strake via the laser particle velocimeter (PIV) under vortex speed U=0.6 m/s and attack angle α=300,
and discusses the VIV suppression mechanism of the spiral stripe strake by using the numerical simulation of the
computational fluid dynamics (CFD) in order to objectively further know inherent mechanism of VIV, further optimize
parameters of the spiral stripe strake, and provide references for theoretical research in future.