, Volume 8, Issue 3-4, pp 153-160

Distribution of turbulence energy dissipation rates in a Rushton turbine stirred mixer

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access


An approximate method of measuring the turbulence energy dissipation rate (ɛ) in mixers by use of laser-Doppler measurements of the velocity autocorrelation and turbulence energy was successful in yielding remarkably consistent values. The necessary corrections for periodic, non-dissipative velocity fluctuations were made by an autocorrelation method. Two modes of periodic fluctuation were found to be significant. Transformation of the corrected autocorrelations yielded completely normal turbulence energy spectra.