Design of Propeller in Low Reynolds Number Range

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Other Title
  • 低レイノルズ数プロペラの設計法

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Abstract

A new method is presented for propeller design for low Reynolds numbers, where conventional methods may fall short. Conventional design methods determine the shape of a propeller by minimizing its induced loss, but this approach is not useful in designing a propeller for low Reynolds numbers, because there the majority of the energy loss is caused by the large profile drag of a propeller's blades. The proposed method directly maximizes the propulsive efficiency of a propeller, allowing the design of a highly efficient propeller while monitoring the loss caused by profile drag. In this method, thrust and power are expressed as functions of the circulation around the blade segments, while wing section data is also taken into account. This method was validated by comparing propellers designed by the conventional method and by the proposed method for a human-powered airplane. The propulsive efficiency of the propeller designed by the new technique is higher by as much as 1.8%.

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Details 詳細情報について

  • CRID
    1573668927023845248
  • NII Article ID
    110006946798
  • NII Book ID
    AA1192675X
  • ISSN
    13491113
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

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