Stochastic Energetic Resonance in Detecting Vortex Shedding Frequency

At present, the study of vortex flowmeter focus on the detection of vortex shedding frequency. With the combination of stochastic energetics and stochastic resonance, a new way, stochastic energetic resonance, is proposed to detect vortex shedding frequency. The theoretical analysis, numerical simulation and experimental results manifest that the vortex shedding frequency can be obtained accurately with the stochastic energetic resonance applied to vortex signal. The method is feasible and effective in vortex shedding frequency.