gold-Fourier Kaluri method for estimating vortex shedding frequency

Abstract

In this paper we present a computationally lean method combining parameter estimation along with Fourier technique with an elegant gold section univariate minimization technique, in estimating the frequency. Simple parameter estimation technique in the presence of noise gives a biased estimate. Proposed method very effectively removes the bias and provides an accurate estimate of vortex shedding frequency. Velocity of flow is directly proportional to this frequency, and hense provides accurate estimate of flow.