Based on the energy capture application scenario,this paper studies the ⅥⅤphenomenon of crossed cylinders at high Reynolds numbers by numerical simulation.A three-di-mensional ⅥⅤ numerical model was established,and the accuracy of the numerical model was verified by comparing with the experimental data in the existing paper.On the basis of the model,the ⅥⅤ of the crossed cylinder is simulated and compared with that of the ordinary cylinder.It is found that due to the influence of the vertical cylinder,the vortex intensity of the crossed cylinder at low and medium flow rates decreases,which reduces the amplitude of the cylinder at low flow rates and increases the starting flow rate.In the middle flow rate range,the amplitude increases due to the change of the vortex shedding position.In the high velocity range,the vortex intensity and vortex shedding position do not change significantly,and the amplitude is also similar to that of the ordinary cylinder.
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