수직축 조류 터빈 발전효율 평가를 위한 유동-터빈 연동 CFD 해석 (II) KCI

Title
수직축 조류 터빈 발전효율 평가를 위한 유동-터빈 연동 CFD 해석 (II)
Alternative Title
Flow-Turbine Interaction CFD Analysis for Performance Evaluation of Vertical Axis Tidal Current Turbines (II)
Author(s)
이진학; 오상호; 박진순; 이광수; 이상열
KIOST Author(s)
Yi, Jin Hak(이진학)Oh, Sang Ho(오상호)
Publication Year
2013-06
Abstract
CFD (computational fluid dynamics) analyses that considered the dynamic interaction effects between the flow and a turbine were performed to evaluate the power output characteristics of two representative vertical‐axis tidal‐current turbines: an H‐type Darrieus turbine and Gorlov helical turbine (GHT). For this purpose, a commercial CFD code, Star‐CCM+, was utilized, and the power output characteristic were investigated in relation to the scale ratio using the relation between the Reynolds number and the lift‐to‐drag ratio. It was found that the power coefficients were significantly reduced when the scaled model turbine was used, especially when the Reynolds number was lower than 105. The power output characteristics of GHT in relation to the twisting angle were also investigated using a three‐dimensional CFD analysis, and it was found that the power coefficient was maximized for the case of a Darrieus turbine, i.e., a twisting angle of 0°, and the torque pulsation ratio was minimized when the blade covered 360° for the case of a turbine with a twisting angle of 120°.
ISSN
1225-0767
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3167
Bibliographic Citation
한국해양공학회지, v.27, no.3, pp.73 - 78, 2013
Publisher
한국해양공학회
Keywords
Flow-turbine interaction analysis; 유동-터빈 연동 해석; Computational fluid dynamics; 전산유체역학; Vertical axis tidalcurrent turbine; 수직축 조류발전 터빈; H형 다리우스 터빈; H-type darrieus turbine; 고로프 헬리컬 터빈; Gorlov helical turbine
Type
Article
Language
Korean
Publisher
한국해양공학회
Related Researcher
Research Interests

Ocean Energy-Tidal Current Energy Converter System,Infrastructure Management-Structural Health Monitoring,Offshore Wind,해양에너지-조류발전시스템,시설물 유지관리-구조건전성 평가,해상풍력

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