Airfoil Section Characteristics at a Low Reynolds Number

[+] Author and Article Information
Shigeru Sunada

Kawachi Millibioflight Project, Exploratory Research for Advanced Technology, Research Development Corporation of Japan, 4-7-6 Komaba Meguro-ku, Tokyo 153, Japan

Akitoshi Sakaguchi

Fuji Heavy Industries LTD., 1-1-11 Yonan Utsunomiya, Tochigi 320, Japan

Keiji Kawachi

Research Center for Advanced Science and Technology, University of Tokyo, 4-6-5 Komaba Meguro-ku, Tokyo 153, Japan

J. Fluids Eng 119(1), 129-135 (Mar 01, 1997) (7 pages) doi:10.1115/1.2819098 History: Received June 05, 1995; Revised July 22, 1996; Online December 04, 2007


The aerodynamic characteristics of airfoils operating at Re = 4 × 103 were examined, varying the parameters related to the airfoil shape such as thickness, camber, and roughness. Airfoils with good aerodynamic performance at this Re have the following shape characteristics: (1) they are thinner than airfoils for higher Re numbers, (2) they have a sharp leading edge, and (3) they have a camber of about five percent with its maximum camber at about mid-chord. The characteristics of airfoils are strongly affected by leading edge vortices. The measured two-dimensional airfoil characteristics indicate that the planform, which greatly affects the flight performance of the three-dimensional wing at high Reynolds numbers, has little effect on the flight performance at this Reynolds number.

Copyright © 1997 by The American Society of Mechanical Engineers
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