<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The measurements for a Kenics static mixer were carried out using Laser Doppler Anemometer (LDA). The test fluid was non-Newtonian solution of CMC, Blanose type 9H4. The velocity data inside the 5th Kenics insert were collected for the axial components at five levels of Reynolds number, Re = 20 ÷ 120. Velocity fluctuations were also analyzed in the frequency domain, after processing them with the help of the Fast Fourier Transform (FFT) procedure. The spectra of fluctuations provided information about level of the fluctuations in the observed range of Reynolds number. The obtained data were then also used to plot the velocity profiles for the fifth insert of the Kenics mixer. It was concluded that in the investigated range of Reynolds numbers (Re = 20 ÷ 120) a strong dependence of the velocity profiles and the flow fluctuations on Reynolds number was observed.</p></abstract>

The measurements for a Kenics static mixer were carried out using Laser Doppler Anemometer (LDA). The test fluid was non-Newtonian solution of CMC, Blanose type 9H4. The velocity data inside the 5th Kenics insert were collected for the axial components at five levels of Reynolds number, Re = 20 ÷ 120. Velocity fluctuations were also analyzed in the frequency domain, after processing them with the help of the Fast Fourier Transform (FFT) procedure. The spectra of fluctuations provided information about level of the fluctuations in the observed range of Reynolds number. The obtained data were then also used to plot the velocity profiles for the fifth insert of the Kenics mixer. It was concluded that in the investigated range of Reynolds numbers (Re = 20 ÷ 120) a strong dependence of the velocity profiles and the flow fluctuations on Reynolds number was observed.

Fluctuations of the non-Newtonian fluid flow in a Kenics static mixer: An experimental study

Institute of Chemical Engineering and Environmental Protection Processes, Szczecin University of Technology, al. Piastów 42, 71-065 Szczecin, Poland

Polish Journal of Chemical Technology

The measurements for a Kenics static mixer were carried out using Laser Doppler Anemometer (LDA). The test fluid was non-Newtonian solution of CMC, Blanose...

Fluctuations of the non-Newtonian fluid flow in a Kenics static mixer: An experimental study

Published Online: Oct 08, 2008

Page range: 35 - 37

DOI: https://doi.org/10.2478/v10026-008-0033-3

Keywords
Flow instabilities, LDA measurements, non-Newtonian fluid, Kenics mixer

This content is open access.

Fluctuations of the non-Newtonian fluid flow in a Kenics static mixer: An experimental study

Published Online: Oct 08, 2008

Page range: 35 - 37

DOI: https://doi.org/10.2478/v10026-008-0033-3

KeywordsFlow instabilities, LDA measurements, non-Newtonian fluid, Kenics mixer

This content is open access.

Keywords
Flow instabilities, LDA measurements, non-Newtonian fluid, Kenics mixer