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Numerical Analysis of Centrifugal Pump Impeller for Performance Improvement

Author(s): S. Kaliappan, M. D. Rajkamal and D. Balamurali

The impeller of an existing Mather & Platt centrifugal pump with both geometry and performance known was analyzed and redesigned using an integrated. The purpose of the redesign was to achieve improved impeller performance at the duty point. Fluid dynamics and geometry modeling parts of the design /analysis system were systematically applied. To analyze the existing impeller say impeller A, which was designed using conventional (routine in industry) hydraulic layout procedures. To develop a new impeller say impeller B, using a coupled, multilevel design and optimization techniques like impeller redesign. The analysis results are presented for impellers A in this Paper and Comparisons of the CFD results for both impellers reveal internal flow features that explain the improved impeller B performance levels in Paper. Computational Fluid Dynamics (CFD) is a tool which aids in conducting or simulating flow through a pump virtually using computer software. An attempt has been made in this paper to improve the performance of a typical centrifugal pump impeller.

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