Faculty Advisor

Johari, Hamid

Faculty Advisor

Olinger, David J.


This project investigated aspect ratio and Reynolds number effects on the lift and drag coefficients of flat plate airfoils. Experiments conducted at Reynolds numbers of 50,000, 100,000 and 200,000, angles of attack of 0-30 degrees, and a thickness-to-chord ratio of 1/24 (0.04167) indicated surprising trends. Low aspect ratios yielded high lift/drag ratios, indicating higher efficiency than higher aspect ratio wings. The same wings also demonstrated an increase in stall angle from 8 to 15 degrees, and a corresponding decrease in dCl/da.


Worcester Polytechnic Institute

Date Accepted

January 2001


Mechanical Engineering

Project Type

Major Qualifying Project


Restricted-WPI community only

Advisor Department

Mechanical Engineering

Advisor Program

Mechanical Engineering