Study of fluid flow in baffled vessels stirred by a Rushton standard impeller

Zdenek Chara, Bohus Kysela, Jiri Konfrst and Ivan Fort

Applied Mathematics and Computation, 2016, vol. 272, issue P3, 614-628

Abstract: The paper deals with an investigation of velocity field in a tank stirred by a standard Rushton impeller located in the middle of the tank height. Time-resolved PIV method was used to measure the angle-resolved velocity field near the impeller blades in horizontal and vertical planes as well. Based on a simplified criterion λ2 < 0 the location, size and strength of trailing vortices behind the blades were determined. The measurements were carried out in two tanks of diameters T = 0.3 and 0.4 m and at mixing Reynolds numbers in a range 3.3–4.9 × 104. Simultaneously a detached eddy simulation (DES) was performed for the tank diameter T = 0.3 m and rotation speed 200 rpm (ReM = 3.3 × 104). The simulation results are compared with the experimental data.

Keywords: Trailing vortices; Rushton impeller; PIV measurements; DES; Numerical simulation (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:272:y:2016:i:p3:p:614-628

DOI: 10.1016/j.amc.2015.06.044

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