An analysis of the velocity field distribution inside the flotation chamber

Jaszczur, Marek; Młynarczykowska, A.; Hanus, Robert

doi:10.1088/1742-6596/745/3/032121

Cited by 6 publications

(10 citation statements)

References 14 publications

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“…As a working fluid in experimental and numerical analysis depending on the case, 100% glycerol (ρ = 1261.1 kg/m 3 , µ = 1.4101 Pa•s), 30% propylene glycol solution, and distilled water were used at the temperature 20 • C (+/−0.2 • C). The distance between the impeller and the bottom of the stirred vessel h was, in this case, a dependent parameter and was equal to 1 4 H, 1 / 3 H, 1 2 H, and 2 / 3 H of the fluid initial high H.…”

Section: The Experimental Setup and Methodologymentioning

confidence: 99%

“…One can infer from this figure that the prediction for the Rushton turbine is compatible with CFD numerical results. The power number Np and Reynolds Re number were calculated according to Equation (1).…”

Section: Cfd Modellingmentioning

confidence: 99%

“…They also play an essential role in the food industry, bioprocessing, wastewater treatment, and mineral processing to accomplish homogenization, heat transfer, gas dispersion, solid suspension, etc. [1]. They play an important role in selected processes as prevention of sediment aggregation, gas dispersion in liquids, the formation of suspensions and slow-sedimenting mixtures.…”

Section: Introductionmentioning

confidence: 99%

“…A new investigation has shown that unbaffled vessel but one equipped with an appropriately designed impeller can be an excellent alternative to the baffled vessel [27][28][29]. Recent analyses estimated that optimized impeller-vessel configuration without baffles for a complete mixture homogenization requires significantly lower energy [1,30]. This demonstrates the significant and unexplored potential of unbaffled vessels.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Impeller Design on Power Characteristics and Newtonian Fluids Mixing Efficiency in a Mechanically Agitated Vessel at Low Reynolds Numbers

2020

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The mixing process is a widespread phenomenon, which plays an essential role among a large number of industrial processes. The effectiveness of mixing depends on the state of mixed phases, temperature, viscosity and density of liquids, mutual solubility of mixed fluids, type of stirrer, and, what is the most critical property, the shape of the impeller. In the present research, the objective was to investigate the Newtonian fluids flow motion as well as all essential parameters for the mechanically agitated vessel with a new impeller type. The velocity field, the power number, and the pumping capacity values were determined using computer simulation and experimental measurements. The basis for the assessment of the intensity degree and the efficiency of mixing had to do with the analysis of the distribution of velocity vectors and the power number. An experimental and numerical study was carried out for various stirred process parameters and for fluids whose viscosity ranged from low to very high in order to determine optimal conditions for the mixing process.

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Section: The Experimental Setup and Methodologymentioning

confidence: 99%

Section: Cfd Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Impeller Design on Power Characteristics and Newtonian Fluids Mixing Efficiency in a Mechanically Agitated Vessel at Low Reynolds Numbers

2020

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“…Stirred vessels are widely used not only in chemical processes but also in bioprocess, food industry and more recently in wastewater treatment and mineral processing, to accomplish homogenization, gas dispersion, solid suspension, heat transfer, etc. [1]. It also plays an essential role in selected processes as gas dispersion in liquids, the formation of suspensions and slow-sedimenting mixtures, prevention of sediment aggregation.…”

Section: Introductionmentioning

confidence: 99%

An experimental and numerical analysis of the fluid flow in a mechanically agitated vessel

2019

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The mixing process is a widespread phenomenon, which plays an essential role among a large number of industrial processes. The effectiveness of mixing depends on the state of mixed phases, temperature, viscosity and density of liquids, mutual solubility of mixed fluids, type of stirrer, a what is the most critical - the shape of the impeller. In the present research, the objective is to analyse the process of the fluid flow in the mechanically agitated vessel with new impeller type. Velocity field values were determined using computer simulation and experimental particle image velocimetry method. The basis for the assessment of the intensity degree and efficiency of mixing was the analysis of velocity vectors distribution and power number. An experimental and numerical study was carried out for various stirred process parameters to determine optimal conditions for the mixing process.

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CFD simulation of single-phase flow in flotation cells: Effect of impeller blade shape, clearance, and Reynolds number

Basavarajappa

Mišković

2019

International Journal of Mining Science and Technology

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An analysis of the velocity field distribution inside the flotation chamber

Cited by 6 publications

References 14 publications

Effect of Impeller Design on Power Characteristics and Newtonian Fluids Mixing Efficiency in a Mechanically Agitated Vessel at Low Reynolds Numbers

Effect of Impeller Design on Power Characteristics and Newtonian Fluids Mixing Efficiency in a Mechanically Agitated Vessel at Low Reynolds Numbers

An experimental and numerical analysis of the fluid flow in a mechanically agitated vessel

CFD simulation of single-phase flow in flotation cells: Effect of impeller blade shape, clearance, and Reynolds number

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