In the present study a mixing index was proposed in order to characterize mixing processes of non Newtonian fluids. The apparent viscosity in a mixing tank equipped with helical ribbon impeller was computed using a CFD package. The symmetry plane of the mixing tank was divided into sixteen zones where an average apparent dimensionless viscosity was calculated to each of these zones from which a mixing index was evaluated. The mixing index showed to increase with impeller rotational speed, impeller/tank diameter ratio and showed to be affected by the rheological parameters of the agitated fluid. The computed data of the mixing index were correlated as a function of impeller/tank diameter ratio, impeller rotational speed and rheological parameters. The proposed correlation deviated from computed data by a maximum deviation of ± 50%.
Rsheed, A., Fangary, Y., & Mahmoud, N. (2011). APPARENT VISCOSITY MIXING INDEX USING CFD COMPUTATIONS FOR NON-NEWTONIAN FLUIDS USING HELICAL RIBBON IMPELLER. JES. Journal of Engineering Sciences, 39(No 4), 827-838. doi: 10.21608/jesaun.2011.127720
MLA
A.A. Rsheed; Y.S. Fangary; N.A. Mahmoud. "APPARENT VISCOSITY MIXING INDEX USING CFD COMPUTATIONS FOR NON-NEWTONIAN FLUIDS USING HELICAL RIBBON IMPELLER", JES. Journal of Engineering Sciences, 39, No 4, 2011, 827-838. doi: 10.21608/jesaun.2011.127720
HARVARD
Rsheed, A., Fangary, Y., Mahmoud, N. (2011). 'APPARENT VISCOSITY MIXING INDEX USING CFD COMPUTATIONS FOR NON-NEWTONIAN FLUIDS USING HELICAL RIBBON IMPELLER', JES. Journal of Engineering Sciences, 39(No 4), pp. 827-838. doi: 10.21608/jesaun.2011.127720
VANCOUVER
Rsheed, A., Fangary, Y., Mahmoud, N. APPARENT VISCOSITY MIXING INDEX USING CFD COMPUTATIONS FOR NON-NEWTONIAN FLUIDS USING HELICAL RIBBON IMPELLER. JES. Journal of Engineering Sciences, 2011; 39(No 4): 827-838. doi: 10.21608/jesaun.2011.127720
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