the results infer that the jet's oscillation pattern is approximately sinusoidal with comparable residence and switching times.

No abstract

No abstract

The presented study examines various methods for phase-averaging the naturally oscillating flow field of a scaled-up fluidic oscillator. No external trigger is employed to control the oscillation of the flow. Mathematical and signal conditioning approaches for phase-averaging the data are categorized and described. The results of these methods are evaluated for their accuracy in capturing the natural flow field. The respective criteria are based on the minimum fluctuation in oscillation period length, the conservation of velocity amplitudes, and the number of snapshots per phase-averaging window. Although all methods produce reasonable qualitative results, only two methods are identified to provide the desired quantitative accuracy and suitability for the investigated flow field. The first method is based on conditioning a time-resolved pressure signal from the feedback channels in the oscillator. An autocorrelation applied to the reference signal improves the period identification. The second method employs

No abstract