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http://dx.doi.org/10.3795/KSME-B.2014.38.6.547

Shape Optimization of Impeller Blades for 15,000 HP Centrifugal Compressor Using Fluid Structural Interaction Analysis  

Kang, Hyun Su (Graduate School of Mechanical Engineering, Sungkyunkwan Univ.)
Oh, Jeongsu (FMTRC, Daejoo Machinery Co.)
Han, Jeong Sam (Dept. of Mechanical Engineering Design, Andong Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.6, 2014 , pp. 547-556 More about this Journal
Abstract
This paper discusses a one-way fluid structural interaction (FSI) analysis and shape optimization of the impeller blades for a 15,000 HP centrifugal compressor using the response surface method (RSM). Because both the aerodynamic performance and the structural safety of the impeller are affected by the shape of its blades, shape optimization is necessary using the FSI analysis, which includes a structural analysis for the induced fluid pressure and centrifugal force. The FSI analysis is performed in ANSYS Workbench: ANSYS CFX is used for the flow field and ANSYS Mechanical is used for the structural field. The response surfaces for the FSI results (efficiency, pressure ratio, maximum stress, etc.) generated based on the design of experiments (DOE) are used to find an optimal shape for the impeller blades, which provides the maximum aerodynamic performance subject to the structural safety constraints.
Keywords
Centrifugal Compressor; Impeller Blade; DOE; RSM; Shape Optimization;
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Times Cited By KSCI : 11  (Citation Analysis)
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