This report investigates the optimization of bluff body cross-sectional shapes for creating vortex induced vibration. By using finite element analysis software, the lift coefficients of 12 geometric shapes were compared to a cylinder. A "T" shape and a "concave-T" shape were selected to be compared to the cylinder in water tank testing. The shapes were manufactured using an ABS rapid prototyping machine and tested in a fluid flow tank system designed by the team. The "T" shapes produced 50% greater forces and 40% greater amplitudes than the cylinder, but the cylinder produced an 85% higher frequency. This study concluded the "T" shapes should be used for low speed, high torque generators, while the cylinder should be used for high speed, low torque generators.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Kielbasa, Matthew J.
• Phinney, Barton Christopher
• Johnson, Benjamin Gervais
• Distler, Daniel Bruce

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-042811-120045

Advisor

• Savilonis, Brian James

Year

• 2011

Date created

• 2011-04-28

Resource type

• Major Qualifying Project

Major

• Mechanical Engineering

Rights statement

• In Copyright