Vortex shedding frequency determined by sur- face pressure fluctuations of three equispaced cylinders

摘要

In his paper, the frequency of vortex shedding form three cylinders of the same diameter in equilateral triangular arrangement is determined experimentally by the spectrum analysis of surface pressure fluctuations at a reynolds number of 3.0 × 10~4. For α = 0°, there exists 'bistable' flow at the spacing .0 For α = 30°, the vortex shedding of the front cylinder is found at small spacing less than 2.0.