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Chapter: Efficient Aerospace Vehicle Technologies, new invention technology, Research project papers,

Electromagnetic Flow Control to Enable Natural Laminar Flow Wings

Electromagnetic Flow Control to Enable Natural Laminar Flow Wings
Efficient Aerospace Vehicle Technologies, Advancing technology and science through flight 2014, Research, Technology, and Engineering Accomplishments, National Aeronautics and Space Administration NASA, Neil A. Armstrong Flight Research Center. new invention technology, Research project papers;

Electromagnetic Flow Control to Enable

Natural Laminar Flow Wings

 

A research team has developed a solid-state electromagnetic device that, when embedded along the leading edge of an aircraft wing, can disrupt laminar air flow on command. The methodology employs a combination of high-voltage alternating and direct current electric fields and high-strength magnets to generate cross flow. This cross flow either forms vortices or trips the flow to turbulent (depending on conditions), energizing the boundary layer to keep the flow attached and prevent stall. Presumed usage would be for an aircraft to activate the device at takeoff, turn the device off after gear-up and initial climb-out, then turn it back on for descent and landing. Using natural laminar flow principles in aircraft design can reduce fuel burn by 6 to 12 percent.

 

 

Work to date: The device has been tested on a flat plate in a wind tunnel.

 

 

Looking ahead: The group plans to test the device on a remotely operated integrated drone aircraft and is targeting 2015 for tests on a Prototype Technology Evaluation Research Aircraft (PTERA).

 

Partner: Brigham Young University provides a wind tunnel and machining facilities to build test articles.

 

Benefits

 

 Efficient: Enables fuel reduction

 Simple: Works with no moving parts, simplifying fabrication and maintenance

 

 Improves safety: Facilitates safer takeoffs and landings

 

Applications

 Aircraft wings

 

 Industrial fluid processing  Heat transfer processes

 

Efficient Aerospace Vehicle Technologies

 

Increasing efficiency in aerospace systems is a key goal across the spectrum of NASA operations.

 

Armstrong researchers are constantly striving to build efficiency into all phases of flight projects, through development, fabrication, and operations processes.

 

From a new wing design that could exponentially increase total aircraft efficiency to a novel test stand for single-engine electric aircraft, our researchers are finding unique solutions that increase efficiency.

 

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