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초소수력 발전용 원통형 헬리컬 터빈의 유동해석open accessFlow Analysis of Cylindrical Helical Water Turbine for Micro Hydro-power
- Other Titles
- Flow Analysis of Cylindrical Helical Water Turbine for Micro Hydro-power
- Issue Date
- 2018
- Publisher
- 한국기계기술학회
- Keywords
- Micro Hydro-power(초소수력); Cylindrical Helical Turbine(원통형 헬리컬 터빈); Tip Speed Ratio(주속비); Helical Angle(비틀림각); Angle of Attack(받음각); NACA0021(대칭형익형단면); Solidity(솔리디티); Power Coefficient(출력계수); Transient Analysis(과도해석)
- Citation
- 한국기계기술학회지, v.20, no.2, pp 187 - 193
- Pages
- 7
- Indexed
- KCI
- Journal Title
- 한국기계기술학회지
- Volume
- 20
- Number
- 2
- Start Page
- 187
- End Page
- 193
- ISSN
- 1229-604X
2508-3805
- Abstract
- This paper presents the flow analysis of flow over a cylindrical helical-blade turbine to investigate its optimum performance by varying design parameters. For numerical investigations, shear stress transport (SST) turbulence model is used. This simulation is carried out using commercial code CFX by ANSYS Inc. In this paper, the shape optimization was of turbine blades with NACA0021 performed for the vertical-axis turbine having the cylindrical shape. The influences of blade angle of attack, helical angle, and solidity on each shape are grasped. From of the flow analysis, power coefficient decreased when the helical angle was 20 degrees or more, and no electricity is produced when the solidity of 0.1. As a result of the shape optimization, the cylindrical turbine showed the highest power coefficient of 0.2733 at 3° of the blade angle of attack, 10° of the helical angle, and 0.2 of the solidity at the tip speed ratio of 1.
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Collections - 융합기술공과대학 > Department of Automotive Engineering > Journal Articles
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