Pre-swirl system의 유량계수 향상을 위한 Pre-swirl nozzle의 형상 최적화 전산해석 연구Pre-swirl Nozzle Geometry Optimization to Increase Discharge Coefficient Using CFD Analysis
- Other Titles
- Pre-swirl Nozzle Geometry Optimization to Increase Discharge Coefficient Using CFD Analysis
- Authors
- 이현규; 이정수; 김동화; 조진수
- Issue Date
- Feb-2017
- Publisher
- 한국유체기계학회
- Keywords
- Computational Fluid Dynamics; Cooling System; Discharge Coefficient; Gas Turbine; Optimization Process; Pre-swirler; Swirl Ratio; 전산유체역학; 냉각 시스템; 유량계수; 가스 터빈; 최적화 과정; 프리스월러; 스월비
- Citation
- 한국유체기계학회 논문집, v.20, no.1, pp.21 - 28
- Indexed
- KCI
- Journal Title
- 한국유체기계학회 논문집
- Volume
- 20
- Number
- 1
- Start Page
- 21
- End Page
- 28
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/2773
- DOI
- 10.5293/kfma.2017.20.1.021
- ISSN
- 2287-9706
- Abstract
- Optimization process of pre-swirl nozzle geometry was conducted to improve the discharge coefficient of pre-swirl system by using CFD. The optimization of pre-swirl nozzle shape covered the converging angle and the location of the converging nozzle. Optimization process included Optimal Latin Hyper-cube Design method to get the experimental points and the Kriging method to create the response surface which gives candidate points. The process was finished when the difference between the predicted value and CFD value of candidate point was less than 0.1%. This paper compared the Reference model, Initial model which is the first model of optimization and Optimized model to study flow characteristics. Finally, the discharge coefficient of Optimized model is improved about 17 % to the Reference model.
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