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Data on the mixing of non-Newtonian fluids by a Rushton turbine in a cylindrical tank

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ABSTRACT

The paper focuses on the data collected from the mixing of shear thinning non-Newtonian fluids in a cylindrical tank by a Rushton turbine. The data presented are obtained by using Computational Fluid Dynamics (CFD) simulation of fluid flow field in the entire tank volume. The CFD validation data for this study is reported in the research article ‘Numerical investigation of hydrodynamic behavior of shear thinning fluids in stirred tank’ (Khapre and Munshi, 2015) [1]. The tracer injection method is used for the prediction of mixing time and mixing efficiency of a Rushton turbine impeller.

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Response curve for the shear thinning fluid at 180 rpm impeller speed.
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f0010: Response curve for the shear thinning fluid at 180 rpm impeller speed.

Mentions: The mixing time in the tank is determined by plotting curves between the simulation predicted tracer concentration and time. The impeller rotations are kept constant at 180 rpm. The detailed experimental and CFD simulation method for estimating the mixing time is given in the literature [3], [4], respectively. A tracer is injected initially at midpoint of bottom surface of the tank, i.e., at location P5 and the concentrations at remaining cells are initialized to zero. Numerically the concentrations at locations P1–P4 are collected with time and the respective non-dimensional traction concentration distributions are presented in Fig. 2. The effect of impeller on fluid flow decreases as move from locations P1 to P4. The mixing time, tm, increases from the locations P1–P4 at all the impeller speeds irrespective of the flow behavior index (n). It is also seen that the impeller rotations has the huge effect on the mixing time.


Data on the mixing of non-Newtonian fluids by a Rushton turbine in a cylindrical tank
Response curve for the shear thinning fluid at 180 rpm impeller speed.
© Copyright Policy - CC BY
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5036514&req=5

f0010: Response curve for the shear thinning fluid at 180 rpm impeller speed.
Mentions: The mixing time in the tank is determined by plotting curves between the simulation predicted tracer concentration and time. The impeller rotations are kept constant at 180 rpm. The detailed experimental and CFD simulation method for estimating the mixing time is given in the literature [3], [4], respectively. A tracer is injected initially at midpoint of bottom surface of the tank, i.e., at location P5 and the concentrations at remaining cells are initialized to zero. Numerically the concentrations at locations P1–P4 are collected with time and the respective non-dimensional traction concentration distributions are presented in Fig. 2. The effect of impeller on fluid flow decreases as move from locations P1 to P4. The mixing time, tm, increases from the locations P1–P4 at all the impeller speeds irrespective of the flow behavior index (n). It is also seen that the impeller rotations has the huge effect on the mixing time.

View Article: PubMed Central - PubMed

ABSTRACT

The paper focuses on the data collected from the mixing of shear thinning non-Newtonian fluids in a cylindrical tank by a Rushton turbine. The data presented are obtained by using Computational Fluid Dynamics (CFD) simulation of fluid flow field in the entire tank volume. The CFD validation data for this study is reported in the research article ‘Numerical investigation of hydrodynamic behavior of shear thinning fluids in stirred tank’ (Khapre and Munshi, 2015) [1]. The tracer injection method is used for the prediction of mixing time and mixing efficiency of a Rushton turbine impeller.

No MeSH data available.


Related in: MedlinePlus