Design of a wind tunnel facility for hands-on use by beginning engineering students

Abstract

The best way to learn engineering is by doing engineering. To foster appropriate types of experiential learning, we have created a unique project called a Design for Lifetime Learning (DL 2) project. This paper addresses one element of this overall effort - the design and construction of a wind tunnel facility to support hands-on learning by beginning engineering students. The wind tunnel facility was designed so each student can operate the tunnel with less than ten minutes of training. The wind tunnel, powered by a 37 kW motor, can generate air velocities of 70 m/s in the 45-cm square test-section. A state-of-the-art electronic force balance provides lift, drag, and pitching moment data. The control and instrumentation systems are designed to promote ease of use. Assessment data from students participating in a pre-college summer camp indicated that the wind tunnel was easy to use and that the wind tunnel enhanced the students' educational experience.