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Aerodynamic Characteristics of a NACA 4412 (空气动力特性的NACA 4412)
Aerodynamic Characteristics
Aerodynamic Characteristics
of a NACA 4412 Airfoil
of a NACA 4412 Airfoil
Presented By: David Heffley
Presented By: David Heffley
Mentor: Dr. Van Treuren
Mentor: Dr. Van Treuren
Scholar’s Day
Scholar’s Day
January 26, 2007
January 26, 2007
Overview
Overview
Objective
Objective
Theory
Theory
Apparatus
Apparatus
Experimental Comparison
Experimental Comparison
Results
Results
Summary
Summary
Recommendations
Recommendations
Objective
Objective
Study the lift and drag forces on a NACA 4412
Study the lift and drag forces on a NACA 4412
airfoil
airfoil
Resolve discrepancy in wind tunnel data
Resolve discrepancy in wind tunnel data
Develop experimental techniques for an airfoil
Develop experimental techniques for an airfoil
Compare wind tunnel data
Compare wind tunnel data
Force Balance to Pressure Distribution
Force Balance to Pressure Distribution
Baylor data to published NACA data
Baylor data to published NACA data
NACA 4412 Airfoil
NACA 4412 Airfoil
4 digit code used to describe airfoil shapes
4 digit code used to describe airfoil shapes
1st digit - maximum camber in percent chord
1st digit - maximum camber in percent chord
2nd digit - location of maximum camber along chord line (from leading edge) in tenths of
2nd digit - location of maximum camber along chord line (from leading edge) in tenths of
chord
chord
3rd and 4th digits - maximum thickness in percent chord
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