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http://dx.doi.org/10.5139/JKSAS.2008.36.10.969

Optimization of sidewalls for a Double-Passage Cascade Experiment  

Cho, Choong-Hyun (경상대학교 항공공학과 대학원)
Ahn, Koo-Kyoung (한국기계연구원, 환경기계연구부)
Cho, Soo-Yong (경상대 항공기부품기술연구센터)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.10, 2008 , pp. 969-978 More about this Journal
Abstract
In a linear cascade experimental apparatus, when it adopts only few blades as well as satisfies the periodic condition between blades, it gives several advantages in experiment. In this study, wall design on a cascade experimental apparatus is conducted to obtain the periodic condition on two blades installed within a passage of which the width is double pitch. The Mach number difference on the blade surface obtained with the periodic and wall condition is chosen as an objective function, and twelve design variables which are related to the wall shape are selected. A wall shape is designed using a gradient-based optimization method. Adjustment of range and weighting function are applied to calculate the objective function to avoid unrealistic evaluation of the objective function. By applying these methods, the computed results show same flow structures obtained with the periodic condition.
Keywords
Double-Passage Cascade; Optimization; Linear Cascade; Turbomachinery;
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Times Cited By KSCI : 1  (Citation Analysis)
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