Experimental and Numerical Investigations of Three-Dimensional Flows around Propellers in Low-Reynolds Number Flows

• YONEZAWA Koichi

  Graduate School of Engineering Science, Osaka University

• SUNADA Shigeru

  Graduate School of Engineering, Osaka Prefecture University

• GOTO Yudai

  Graduate School of Engineering Science, Osaka University

• HAYASHIDA Takashi

  Graduate School of Engineering, Osaka Prefecture University

• ANYOJI Masayuki

  Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency

• TSUJIMOTO Yoshinobu

  Graduate School of Engineering Science, Osaka University

Abstract

A propeller for small scale unmanned aerial vehicle (UAV) is used in low-Reynolds number conditions. In order to obtain high thrust and efficiency under low-Reynolds number conditions, the blade aspect ratio becomes small. The flow around the propeller with low-aspect ratio becomes quite three-dimensional. In the present study, experimental and numerical investigations are carried out to clarify effects of the three-dimensional flow on the propeller performance focusing on vortices associating with the low-Reynolds number flows.

Journal

• TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN

  TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 12 (ists29), Pk_65-Pk_70, 2014

  THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

Keywords

• Propeller
• Low-Aspect Ratio
• Low-Reynolds Number
• Leading Edge Vortex
• Tip Vortex

Details

• CRID: 1390282680297659264
• NII Article ID: 130004956825
• DOI: 10.2322/tastj.12.pk_65
• ISSN: 18840485
• Web Site: https://www.jstage.jst.go.jp/article/tastj/12/ists29/12_Pk_65/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed