A201 設計教育用マイクロ垂直軸風車周りの低レイノルズ数流れ解析(OS2 再生可能エネルギー(2))

Abstract

Abstract In this report, numerical analyses of performances of prototype Mg-alloy micro vertical axis wind turbine were conducted It has 3 wings with usual NACA0018 wing section. Typical Reynolds number based on the wind speed and the wing chord length were set around 3.3 × 10^4 with consideration for using as a portable-type micro VAWT system for engineering educations. In such low Reynolds number cases, somewhat different way of design would be required. We also examined a torque variation generated from the wings using 3-D unsteady CFD analysis and compared the results and flow patterns for higher performance in case of such low Reynolds number flow.