Flow pattern identification in a rectangular tank comprising stirrer in an off-center orientation

Abstract eng:
In this paper the results of experimental research of flow pattern identification during mixing process using a stirrer in an off-center orientation in a rectangular tank were presented. The research applied Digital Particle Image Velocimetry (DPIV) technique. The velocity vector fields with regard to the stirrer orientation and rotational speed of the mixing process were determined and they were subsequently applied for identification and assessment of liquid flow pattern in a tank. Also the assessment of flow pattern by statistical non-uniform coefficient was introduced. The relation between the rotational speed of the stirrer and stirrer orientation for mixing performance were determined. The study demonstrated some lack of analogy in certain areas of liquid behavior during the mixing process in the tank with rectangular crosssection and circular cross-section.

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