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Effect of Impeller Structure Parameters on Desulfurizer Mixing …

Compared the flow structure and mixing effect of four impeller systems by numerical simulation. The distribution and motion behavior of desulfurizer particles are further discussed.

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Numerical simulation of slurry basin impeller operation for …

impeller shaft 7 is carried out by means of a chain compensating clutch. Impeller shaft has three supports 4 - directly under the portal, 5 - in the intermediate section of the shaft, with support on the tank wall 6, 8 - hub, installed on the tank bottom. The mixing process is initiated by the mixing device (impeller) the mutual movement of

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Mixer Module Application Gallery Examples

This tutorial example simulates the flow in a flat bottom mixer containing, agitated by a pitched four blade impeller, where the fluid is water, and flow is assumed to be turbulent. The flow in the mixer is modeled using the k-ε turbulence model, and a time-dependent simulation ...

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Turbulent Mixing in a Stirred Tank

The trace species is added when the mixer is running in steady operation. The mixing time is evaluated by comparing the concentration in a measurement point to the average concentration in the vessel. Model Definition MODEL GEOMETRY Figure 1 shows the model geometry, which is a schematic cross section of a tank with a four-blade impeller.

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CFD simulation of hydrodynamics and mixing performance in …

Many studies have been carried out on optimizing impeller structure to achieve efficient mixing of highly viscous and non-Newtonian fluids. Liu et al. [10] explored the chaotic mixing characteristics of high viscosity fluids with a rigid-flexible impeller in the tank. Compared with the traditional rigid impeller, the rigid-flexible impeller could improve the largest Lyapunov …

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Fluid Behaviour in Mixing Tank, CFD Simulation

3.3 Velocity The velocity contour captured by cross-section view Y-Z in the center of tanks as shown in Figure 3.3. The vortex observed in unbaffled tank reached to blade 2 compared to baffled tank.

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VisiMix – Mixing Simulation and Mixing Optimization …

Liquid–liquid mixing: Impeller design for liquid–liquid dispersion using VisiMix RSD/Turbulent ... Mixing Simulation software for Chemical and Process Engineers. P.O. Box 45170 Jerusalem, Israel 9145101 Tel: + Tel: …

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Optimized Design of Solid–Liquid Dual-Impeller Mixing Systems …

Flow interferences occur in the dual-impeller stirred tank between paddles as well as between paddles and baffles and the tank wall, leading to inefficient utilization of the stirring energy. To address this issue, this study investigates the flow characteristics within the mixing tank using Euler–Euler numerical simulation and the particle image velocimetry (PIV) experimental …

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CFD simulation of stirred tanks: Comparison of turbulence …

In this part of review, CFD simulations of radial flow impellers (mainly disc turbine (DT)) in a fully baffled vessel operating in a turbulent regime have been presented.

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Design of impeller blades for intensification on fluid mixing …

The hydrodynamics of self-similarity impeller was analyzed by CFD simulation with DES approach. ... As shown in Fig. 10, the power numbers of three impeller mixing systems were relatively stable. The power number of self-similarity 1 impeller was about 34.6% lower than that of RT impeller, and the power number of self-similarity 2 impeller was ...

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(PDF) Numerical simulation of mechanical mixing in …

Further comparing shear stress/rate of helical ribbon with that of impeller A-310, a different mixing mechanism for helical ribbon and impeller A-310 can be revealed. Impeller A-310 had relatively small wall shear stress but a large shear rate. It …

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Simulate Fluid and Chemical Mixing with the Mixer Module

Discover capabilities for performing a variety of fluid mixing simulations. The Mixer Module contains flexible and robust modeling interfaces for describing fluid flow in tanks with rotating …

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(PDF) CFD Analysis of Mixing in a CSTR

The effect of fluid flow and impeller characteristics on the mixing behavior of the reactor via. The continuous Stirred tank reactor (CSTR) is a process equipment frequently used in the chemical, food and pharmaceutical engineering related industries. ... (JMESS) ISSN: 2458-925X Vol. 2 Issue 10, October - 2016 CFD Simulation of Mixing Effect on ...

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CFD simulation and experimental analysis of solid-liquid mixing

Gu et al. [20] applied CFD simulation to optimize impeller speed, flexible connection piece length, ... As displayed in Fig. 11, in the pitched-blade impeller mixing system, many solid particles were deposited at the bottom of stirred tank, and the solid concentration at the bottom plane of stirred tank was very large, while the solid holdup in ...

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Discrete element simulation for mixing performances and power

Discrete element simulation for mixing performances and power consumption in a twin-blade planetary mixer with non-cohesive particles. Author links open overlay panel Jiecai Long, ... The twin-blade planetary mixer and the pitched-blade impeller mixer have the same mixing principle; that is, the particles are driven to move by the agitation of ...

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CFD simulation of impeller shape effect on the solid cloud

aims to simulate the impact of 33 distinct impeller designs on the mixing quality of solid–liquid stirred vessels in terms of solid cloud volume by the CFD technique.

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THE INFLUENCE OF ROTATING DOMAIN SIZE IN A …

Simulation of Rotating Impeller in a Mixing Vessel 129 Journal of Engineering Science and Technology AUGUST 2007, Vol. 2(2) the outer part with baffles, shaft and vessel walls in stationary frame of reference. The stationary frame of …

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MixIT- Mixing Solution | Mixing Simulation Software

Transform mixing processes with MixIT, leveraging advanced real-time data integration and 3D CFD models for enhanced stirred tank analysis and scalability. ... MixIT provides comprehensive simulation and analysis features and functionality to optimize reactor performance. ... Predict the shape and depth of impeller vortices for different ...

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Simulation of Mixing Processes

Simulation of Mixing Processes VisiMix Ltd, PO Box 45170, Jerusalem, 91450, Israel Tel: 972 - 2 - 5870123 Fax: 972 - 2 - 5870206 E-mail: info@visimix . ... Impeller ± 1, 2 or 3 depending up reactor fluid and liquid height ± Non - standard 4 blade pitched(45 o) blade

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CFD simulation model for mixing tank using multiple …

In this work, CFD simulations have been conducted to investigate flow behaviour of water in fully baffled stirred tank with Rushton turbine as impeller. The aim of the paper is to develop CFD model of such tank and …

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Multi‐impeller mixing performance prediction in stirred …

The aim of this article is to identify an appropriate approach for impeller mixing performance prediction with respect to accuracy and efficiency, and the potential to apply it in further optimization studies. ... From the …

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CFD simulation of hydrodynamics and mixing performance in …

The dual shaft mixer strengthened the hydrodynamic interaction between impellers through increasing left impeller off-bottom height C 2 (as shown in Fig. S2 (C 2 /H = 0.3–0.7)), enhanced the instability of flow field and destroyed local circulation structure in the upper part of tank, resulting in more unstable flow field and higher mixing ...

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Mixing Tank

In this tutorial, we will demonstrate how to use Dynamic Mesh to model rotating components. We will simulate the rotation of an impeller in a cylindrical tank partially filled with water. The …

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Computational simulation of mixing flow of shear thinning non …

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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CFD simulation and experimental analysis of solid-liquid mixing

Gu et al. [20] applied CFD simulation to optimize impeller speed, flexible connection piece length, impeller spacing and aperture size/ratio of punched rigid-flexible impeller in the …

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CFD simulation of impeller shape effect on quality of mixing in two

The present study is aimed at finding a more detailed information on the effect of four different pitched blade impellers, including 15°, 30°, 45° and 60° impellers in the mixing …

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Numerical simulation of solid-liquid mixing characteristics in a

Fractal shape impeller was more efficient than jagged shape impeller in solid-liquid mixing process. Larger particle diameter and higher initial solid particle loading resulted in less homogenous distribution of solid particles. ... Numerical simulation on mixing process of sludge and solid particles in a stirred tank equipped with shifted ...

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An Understanding of the Relationship Between Mixing

The simulation results show that the impeller speed only affects the mixing process and does not change the mixing uniformity; the fill level has a significant effect on the particle mixing, and a higher fill level will inhibit the particle mixing; based on the uniform mixing, the fill level has little effect on the total power consumption per ...

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Bioreactor Mixing: a Comparison of Computational Fluid …

The torque and power number results of three different stirrers were compared through experimental and simulation methods. ... similar to the single impeller system. By correlating the mixing time ...

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Turbulent Mixing in a Stirred Tank

The mixing in also poor in between the impeller blades. This is a well-known phenomenon and is the reason to why chemical substances are commonly added as close to the impeller axis as possible. Figure 5: ... In this manner the quasi …

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