MICHAEL SCOTT SELIG
Pilots at Riverwood Pt, Mahomet, IL
License number
Illinois A2470668
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1512 Riverwood Pt, Mahomet, IL 61853
Professional information
Low Reynolds Number, Low Drag, High Lift Airfoil
US Patent:
6382921, May 7, 2002
Filed:
Jan 30, 2001
Appl. No.:
09/772367
Inventors:
Michael S. Selig - Mahomet IL
William Holmes - London, CA
Frank Stauder - London, CA
William Holmes - London, CA
Frank Stauder - London, CA
Assignee:
Seimens VDO Automotive, Inc. - Mississauga
International Classification:
F04D 2938
US Classification:
416243, 416DIG 2, 416DIG 5
Abstract:
Airfoils having high lift to drag characteristics at low Reynolds number are disclosed. The airfoils including a leading edge , a trailing edge spaced from the leading edge, an upper surface extending from the leading edge to the trailing edge, and a lower surface extending from the leading edge to the trailing edge. An airfoil designed for a tip region of a blade has a thickness in a range of 3% to 13%, a Reynolds number in a range from 120,000 to 400,000, and a maximum lift coefficient in a range from 1. 0 to 1. 2. An airfoil designed for a midspan region of a blade has a thickness in a range of 3% to 13%, a Reynolds number in a range from 90,000 to 200,000, and a maximum lift coefficient in a range from 1. 4 to 1. 6. An airfoil designed for a root region of a blade has a thickness in a range of 5% to 15%, a Reynolds number in a range from 60,000 to 120,000, and a maximum lift coefficient in a range from 1. 8 to 2.
Morphing Segmented Wind Turbine And Related Method
US Patent:
2013006, Mar 14, 2013
Filed:
Jun 20, 2012
Appl. No.:
13/528753
Inventors:
Eric Loth - Charlottesville VA, US
Michael Selig - Mahomet IL, US
Adam Steele - State College PA, US
Michael Selig - Mahomet IL, US
Adam Steele - State College PA, US
Assignee:
UNIVERSITY OF VIRGINIA PATENT FOUNDATION - Charlottesville VA
International Classification:
F03D 7/04, B23P 15/04, F03D 3/06
US Classification:
416 44, 2988971
Abstract:
A downwind morphing rotor that exhibits bending loads that will be reduced by aligning the rotor blades with the composite forces. This reduces the net loads on the blades which therefore allow for a reduced blade mass for a given maximum stress. Also provided is a pre-aligned configuration rotor whereby the rotor geometry and orientation does not change with wind speed, and instead is fixed at a constant downwind deflection consistent with alignment at or near the rated wind speed conditions. Also provided is a twist morphing rotor where the airfoil-shapes around the spars twist relative to the wind due to aerodynamic forces so as to unload the rotors when there is a gust. This can help reduce unsteady stresses on the blade and therefore may allow for reduced blade mass and cost. The twist morphing rotor may be combined with either downwind morphing rotor or pre-alignment rotor.