Collect. Czech. Chem. Commun. 1995, 60, 85-94
https://doi.org/10.1135/cccc19950085

Phenomenon of Turbulent Macro-Instabilities in Agitated Systems

Oldřich Brůhaa, Ivan Fořtb and Pavel Smolkaa

a Department of Physics, Faculty of Mechanical Engineering, Czech Technical University, 166 07 Prague 6, Czech Republic
b Department of Chemical and Food Process Equipment Design, Faculty of Mechanical Engineering, Czech Technical University, 166 07 Prague 6, Czech Republic

Abstract

Turbulent macro-instabilities in the process of mixing in cylindrical baffled vessel provided with pitched blade impeller were studied. Rules of macro-instability occurrence were investigated in their dependence on physical parameters of three Newtonian liquids mixed and on the regime of mixing. The observations were realized partly visually, partly by means of a specially designed mechanical measuring device connected with an electronic recorder indicating the manifestations of instability in the liquid.