Simultaneous multiple-location separation control

US7537182B2 · kind B2 · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventor

• David Greenblatt · Newport News, US

Key dates

• Filing date: Sep 22, 2005
• Grant date: May 26, 2009
• Expiry date: Jun 18, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/2213
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method of controlling a shear layer for a fluid dynamic body introduces first periodic disturbances into the fluid medium at a first flow separation location. Simultaneously, second periodic disturbances are introduced into the fluid medium at a second flow separation location. A phase difference between the first and second periodic disturbances is adjusted to control flow separation of the shear layer as the fluid medium moves over the fluid dynamic body.