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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
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
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
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

APPARENT VISCOSITY MIXING INDEX USING CFD COMPUTATIONS FOR NON-NEWTONIAN FLUIDS USING HELICAL RIBBON IMPELLER

Article 9, Volume 39, No 4, July and August 2011, Page 827-838  XML PDF (444.07 K)
Document Type: Research Paper
DOI: 10.21608/jesaun.2011.127720
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Authors
A.A. Rsheed; Y.S. Fangary; N.A. Mahmoud
Mechanical power engineering dept. Faculty of engineering, Ain Shams University
Abstract
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%.
Main Subjects
Mechanical, Power, Production, Design and Mechatronics Engineering.
Statistics
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