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Cfd simulation of gas-liquid dispersion in stirred tank / Henry Liau Dao Wei

By:

Henry Liau, Dao Wei [author.]

Material type: Text

text

Media type:

unmediated

Carrier type:

volume

ISBN:

THE0010680 (Local)

Subject(s):

Online resources:

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Dissertation note: Final Year Report (Bachelor of Chemical Engineering ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025 Abstract: This study investigates the influence of gas loading on power number and mixing time in stirred tanks through Computational Fluid Dynamics (CFD) simulations and experimental validation. Stirred tanks are vital in numerous industrial processes, and CFD provides a detailed, cost-effective alternative to traditional experimental methods for analyzing fluid flow and mixing dynamics. A 3D geometry of the stirred tank, including the impeller, baffles, and sparger, was developed using Gambit version 2.3.4, and simulations were conducted in Ansys Fluent. Results were validated using data from particle image velocimetry (PIV) studies by Geng et al., 2012, which examined liquid phase hydrodynamics in an aerated tank stirred by a half elliptical blade disk turbine (HEDT) under aerated conditions. The findings reveal that gas loading has a significant effect on power number and mixing time, with increased turbulent kinetic energy and altered liquid velocity patterns observed in the presence of gas. CFD accurately replicated flow patterns and gas-liquid interactions, demonstrating its reliability in modeling such systems. This integrated computational and experimental approach offers valuable insights for optimizing gas-liquid dispersion in industrial stirred tank applications.

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Title notes ( 4 )

Holdings
Item type	Current library	Call number	Status	Date due	Barcode
Final Year Report	UMPLIB GAMBANG	FTKKP .D36 2025 r Bc. (Browse shelf(Opens below))	Not for loan		T000004275

Faculty of Chemical and Process Engineering Technology

Final Year Report (Bachelor of Chemical Engineering ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025

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This study investigates the influence of gas loading on power number and mixing time in stirred tanks through Computational Fluid Dynamics (CFD) simulations and experimental validation. Stirred tanks are vital in numerous industrial processes, and CFD provides a detailed, cost-effective alternative to traditional experimental methods for analyzing fluid flow and mixing dynamics. A 3D geometry of the stirred tank, including the impeller, baffles, and sparger, was developed using Gambit version 2.3.4, and simulations were conducted in Ansys Fluent. Results were validated using data from particle image velocimetry (PIV) studies by Geng et al., 2012, which examined liquid phase hydrodynamics in an aerated tank stirred by a half elliptical blade disk turbine (HEDT) under aerated conditions. The findings reveal that gas loading has a significant effect on power number and mixing time, with increased turbulent kinetic energy and altered liquid velocity patterns observed in the presence of gas. CFD accurately replicated flow patterns and gas-liquid interactions, demonstrating its reliability in modeling such systems. This integrated computational and experimental approach offers valuable insights for optimizing gas-liquid dispersion in industrial stirred tank applications.