Abstract
Two techniques are generally used to extract turbulence information from engine flows: the ensemble and cyclic, or scale-based average. A new method is proposed here that uses an energy-based cyclic averaging technique. The energy-based filter proves to be superior in removing the coherent events associated with the cycle-to-cycle variations in the mean flow.
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Received: 8 June 1998/Accepted: 20 March 2000
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Ancimer, R., Sullivan, P. & Wallace, J. Decomposition of measured velocity fields within spark ignition engines using discrete wavelet transforms. Experiments in Fluids 30, 237–238 (2001). https://doi.org/10.1007/s003480000152
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DOI: https://doi.org/10.1007/s003480000152