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with an A200 impeller at various Reynolds numbers. Power number and mixing time predictions are calculated and compared with available data and correlations. Conclusions Simulations for impeller mixing have a wide variety of applications, but must be tuned to produce meaningful results. The results
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Axial impellers, on the other hand, create a vertical mixing flow at the impeller, which means they do not require baffles to achieve mixing. However, axial impellers also have a radial component, so baffles can be used to increase radial mixing in axial impellers, if desired. ... Our results from the frozen rotor simulation for the laminar ...
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In this study, experimental tests and computational fluid dynamics simulations were performed to examine the flow characteristics of four impeller designs (anchor, saw …
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This study creates a design tool that integrates one-dimensional equations and computational fluid dynamics (CFD) simulations to design centrifugal pump impellers.
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For the low solid loading system, when the impeller was close to the bottom, the mixing effect and driving force for solid suspension in the lower part of the tank was relatively better than in the upper part. ... and Fangqin Cheng. 2022. "Numerical Simulation of Dense Solid-Liquid Mixing in Stirred Vessel with Improved Dual Axial …
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Computational fluid dynamics technique (CFD) was used to investigate the effect of four different pitched blade impellers, including 15°, 30°, 45° and 60°, on the mixing quality of …
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CFD SIMULATION MODEL FOR MIXING TANK USING MULTIPLE REFERENCE FRAME (MRF) IMPELLER ROTATION Ansar Ali, ThiyamTamphasana Devi E-Mail Id: aliansar1994@gmail, thiyam85@gmail Department of Civil Engineering, National Institute of Technology, Manipur
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Simulation helps to evaluate different tank configurations, impeller types and orientations, liquid levels, operating conditions and various fluids. Automated Mixing Guided Process …
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Computational simulation of mixing flow of shear thinning non-Newtonian fluids with various impellers in a stirred tank
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Then the influence of impeller type on the mixing quality and the oxygen mass transfer coefficient was studied by coupling the oxygen mass transfer model. In addition, the power consumption of different impellers under the same conditions were compared to provide a reference for choosing a more economical and effective impeller …
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Some studies on mixing of non-Newtonian fluids have exposed segregated zones close to the impeller, and undesired flow patterns that affect mixing performance. The impeller discharge angle, and the size and position of the segregated zones have been found to be a function of the operating conditions [5], [22], [46].
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Fluid mixing is a common process in chemical, paper, food, pharmaceutical industries, among others. ... The first step is process equipment design and involves defining the impeller type, temperature and blade inclination, etc. ... CFD simulation can also be used to simulate the vessel's hydrodynamics under a variety of operating …
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The Mixer Module includes a Part Library with the most common impeller and tank geometries. These parts can be used to create a model of a mixer or stirred tank …
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The hydrodynamics of fractal impeller in solid-liquid mixing process was studied by CFD simulation. • Fractal impeller can improve solid-liquid homogeneous degree. • Fractal impeller can reduce the power consumption. • Solid suspension quality increased with the increase of fractal iteration number of fractal impeller.
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Time-dependent passive scalar simulations were also performed to predict the mixing time required for the impeller system as a function of the Reynolds number. In predicting …
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A hybrid method for the simulation of Reynolds-averaged turbulent flows in axial flow impeller driven mixing vessels is described. The time-mean flow in the impeller region is modelled using blade element theory, while the flow in the remainder of the vessel is simulated using a second-order finite-volume Reynolds-averaged …
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Impeller design uses fundamental fluid dynamics and energy transfer principles to function effectively. The primary function of an impeller is to convert mechanical energy from a …
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DOI: 10.1016/j.cjche.2020.06.036 Corpus ID: 225530152; CFD simulation of impeller shape effect on quality of mixing in two-phase gas–liquid agitated vessel @article{Heidari2020CFDSO, title={CFD simulation of impeller shape effect on quality of mixing in two-phase gas–liquid agitated vessel}, author={Amir H. Heidari}, …
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Bingzhong et al. conducted a numerical simulation study on the solid-liquid mixing process of a 3-layer staggered 45° tooth impeller power mixer, which clearly showed that the mixing power increased with the increase of solid particle size and rotational speed, and the effect of rotational speed on the mixing power was more obvious.
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The mixing performance of Rushton turbine (RT) impeller and self-similarity impeller were evaluated using experimental analyzes and computational fluid dynamics (CFD) with …
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P, N, M, and ω represent the power drawn by the impeller, the impeller speed (in revolutions per minute), the torque acting on the impeller blades, and the angular velocity of the impeller, respectively.. One major contribution to fluid mixing is shear, as it separates adjacent fluid elements. Shear forces and shear rates are a function of …
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1. Introduction. Radial flow impellers are widely used for mixing in chemical production, very important to stirred equipment. The efficiency of a mixing system is influenced by the flow pattern therein, which is in turn significantly dependent on the geometry of agitator [1].Therefore, development of new impellers with low power …
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DOI: 10.1016/J.APT.2019.06.028 Corpus ID: 199187621; Numerical simulation of solid-liquid mixing characteristics in a stirred tank with fractal impellers @article{Gu2019NumericalSO, title={Numerical simulation of solid-liquid mixing characteristics in a stirred tank with fractal impellers}, author={Deyin Gu and Chao An …
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