Case Study
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Case Study
“The utilization of Ansys solutions in the numerical analysis of coaxial mixer performance, specifically for dispersing gas into non-Newtonian fluids, has significantly enhanced our understanding of complex mixing behavior. Ansys CFD simulations provided invaluable insights by analyzing flow patterns, shear environments, bubble size distributions, viscosity profiles, mass transfer characteristics, and local gas holdup profiles. Moreover, numerical simulations enabled us to identify and mitigate poor mixing in bioprocesses, which ensured uniform gas distribution across the vessel, prevented localized oxygen depletion, and optimized process performance. In fact, Ansys solutions provided essential tools for advancing research and optimizing gas-liquid mixing processes.”
— Paloma Lins Barros, Ph.D. Candidate, Fluid Mixing Technology Research Lab, Toronto Metropolitan University
Given the extensive use of gas-liquid mixing systems, particularly in pharmaceutical bioprocesses, a comprehensive characterization of these operations becomes essential. Engineering simulation is crucial to providing the insights necessary for understanding the process's sensitivity to operating conditions and addressing the challenges in multiphase systems, including the mixing of non-Newtonian fluids. This detailed analysis is valuable for process design and scale-up.
Due to challenges in experimental analysis arising from the unfeasible measurement of certain variables, numerical simulation became essential to fully explore gas dispersion within non-Newtonian fluids. To accurately characterize gas-liquid mixing performance using computational fluid dynamics, it was imperative to utilize software capable of handling the complexities of the system.
As a Ph.D. candidate at Toronto Metropolitan University, Paloma Lins Barros is actively engaged in research at the Fluid Mixing Technology Research Lab, which has a legacy of over 15 years. This advanced facility at the university enables researchers to investigate multiphase flow systems, non-Newtonian fluid flow, complex mixing operations, and granular flow. Her academic journey has primarily focused on multiphase fluid flow analysis.
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