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This document describes a study that used laser Doppler velocimetry to measure turbulent flow parameters in a stirred tank with a Rushton turbine impeller. The researchers found two significant periodic velocity fluctuations corresponding to the impeller blade frequency and twice that frequency. After removing the periodicity, they obtained meaningful turbulence data including intensities, scales, spectra, and dissipation rates. They estimated that 60% of the energy input by the impeller was dissipated near
- Author
- Luís Guilherme Souza Parreiras
- Language
- EN