Matej Zadravec (Author), Sani Bašič (Author), Matjaž Hriberšek (Author)

Abstract

This paper presents simulation of rotating impeller in a mixing vessel by means of Computational Fluid Dynamics (CFD). A special emphasis is devoted to the study of influence of the choice of numerical model for simulation of rotation of impeller when mixing a Newtonian fluid in a vessel equipped with Rushton impeller, and operating under turbulent flow conditions. In order to determine the best simulation approach experimental validation of the selected problem is done by means of Particle Image Velocimetry (PIV) system. When using the rotating frame of reference approach, the stirring vessel geometry has to be split into a stationary and rotating part, and the questionarises where to position the interface between both regions in order to avoid numerical errors, originating in numerical approximations at the interface. To answer this question, a comparison between the CFD based numerical results and experimental results, was made.

Keywords

mehanika fluidov;mešanje;turbulentni tok;CFD;PIV;fluid mechanics;turbulent flow;Computational Fluid Dynamics;Particle Image Velocimetry;rotating frame of reference;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
UDC: 532.5:519.876.5
COBISS: 11988758 Link will open in a new window
ISSN: Y506-1148
Views: 1617
Downloads: 53
Average score: 0 (0 votes)
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Other data

Secondary language: English
Secondary keywords: mehanika fluidov;mešanje;turbulentni tok;CFD;PIV;
URN: URN:SI:UM:
Pages: str. 126-138
Volume: ǂVol. ǂ2
Issue: ǂno. ǂ2
Chronology: 2007
Keywords (UDC): mathematics;natural sciences;naravoslovne vede;matematika;physics;fizika;fluid mechanics in general;mechanics of liquids (hydromechanics);mehanika tekočin;mehanika kapljevin;liquid motion;hydrodynamics;mathematics;natural sciences;naravoslovne vede;matematika;mathematics;matematika;operational research (or): mathematical theories and methods;operacijsko raziskovanje;
ID: 1437551