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Type: Artigo de evento
Title: Design Of A Low Shear Hydrofoil Through The Use Of Computational Fluid Dynamics And Multi-objective Design Optimization
Author: Spogis N.
Nunhez J.R.
Abstract: The project of chemical processes and equipments is a task that demands a significant experimental support and a great number of prototypes and tests. Aiming at reducing the development time, ANSYS-CFX tools have been successfully coupled to modeFRONTIER so as to lead to an optimal design of a high efficiency impeller for flow-controlled, low viscosity applications. The analysis of impeller shape performance was carried out with the SST (Shear-Stress Transport) model coupled with the streamline curvature turbulence model. This model combines the advantages from the κ-ε and κ-ω models, ensuring proper relation between turbulent stress and turbulent kinetic energy and allowing accurate and robust prediction of the impeller blade flow separation. The Multiple Frames of Reference and the Frozen Rotor Frame Change model were used in order to investigate the rotor/stator interaction inside the mixing vessel. A robust stochastic algorithm was used for the automatic multi-objective constrained shape design process. The multi-objective function has seven design variables, two nonlinear constraints, and two objective functions. Simultaneous increase of the pumping impeller capacity and mixing vessel homogeneity were achieved using this method.
Rights: fechado
Identifier DOI: 
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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