Chapter 5 Airfoils Wings and Other Aerodynamic Shapes
- Slides: 108
Chapter 5, Airfoils, Wings, and Other Aerodynamic Shapes – a mini course on aerodynamics Douglas S. Cairns Lysle A. Wood Distinguished Professor
F 1 is the integrated resultant of pressure on the TOP surface F 2 is the integrated resultant of pressure on the BOTTOM surface
Note: The basis Cessna airfoil is a NACA 2412
The NACA Airfoils The NACA airfoils are airfoil shapes for aircraft wings developed by the National Advisory Committee for Aeronautics (NACA). The shape of the NACA airfoils is described using a series of digits following the word "NACA. " The parameters in the numerical code can be entered into equations to precisely generate the cross-section of the airfoil and calculate its properties. "It shall be the duty of the advisory committee for aeronautics to supervise and direct the scientific study of the problems of flight with a view to their practical solution"
The first NACA Meeting - 1915
The NACA 4 Digit Series The NACA four-digit wing sections define the profile by: One digit describing maximum camber as percentage of the chord. One digit describing the distance of maximum camber from the airfoil leading edge in tens of percents of the chord. Two digits describing maximum thickness of the airfoil as percent of the chord. For example, the NACA 2412 airfoil has a maximum camber of 2% located 40% (0. 4 chords) from the leading edge with a maximum thickness of 12% of the chord. Four-digit series airfoils by default have maximum thickness at 30% of the chord (0. 3 chords) from the leading edge. The NACA 0015 airfoil is symmetrical, the 00 indicating that it has no camber. The 15 indicates that the airfoil has a 15% thickness to chord length ratio: it is 15% as thick as it is long.
The NACA 5 Digit Series The NACA five-digit series describes more complex airfoil shapes: The first digit, when multiplied by 0. 15, gives the designed coefficient of lift (CL). Second and third digits, when divided by 2, give p, the distance of maximum camber from the leading edge (as per cent of chord). Fourth and fifth digits give the maximum thickness of the airfoil (as per cent of the chord). For example, the NACA 12018 airfoil would give an airfoil with maximum thickness of 18% chord, maximum camber located at 10% chord, with a lift coefficient of 0. 15
Appendix D - NACA 2412 Airfoil
Summary Equations – Critical Mach Number and Compressibility (based on isentropic equations)
NASA LS (1) Airfoil
Boeing 737 Wing In flight, high lift devices retracted, configured for cruise, top picture with relatively new winglets Landing configuration, slats, flaps, and spoilers deployed (bottom)
Circulation “Sails” Bureau Mauric ALCYONE Cousteau Society Calypso II; designed but not built Blowers are mounted at base to add circulation to free stream wind; creates lift leading to propulsion of the vessel
Chapter 5 Summary
Chapter 5 Summary (cont. )
Chapter 5 (cont. )
- Cessna airfoil
- Bottle rocket fins design
- Mean aerodynamic chord
- Aerodynamics of rockets
- Least aerodynamic shape
- Dragster aerodynamics
- Aerodynamic devices
- Force lift equation
- Shapes that seem to follow no rules
- Lightly drawn line to guide drawing other lines and shapes.
- Types of positions
- How are the whale flipper and the human arm different
- Wings of the stage
- Metaphor in caged bird
- Smv sinuses
- Ipl line skull
- Acanthiomeatal line
- Wings macklemore meaning
- Wings of misdirection
- What is a generalization?
- Faa wings pilot proficiency program
- Wings of politics
- Proscenium stage diagram
- Ventral view of cockroach diagram
- Free bird metaphor
- Createdst
- Annular wings
- Wings triad
- Declan galbraith angels
- Slotted flaps
- Hide me under your wings
- Verbs for butterfly
- Red wings marquette prison
- Scracth meaning
- Chapter 5 newton's third law of motion
- Tanehokahoka
- Swot red bull
- Slightly tilted wings of airplanes deflect
- Conceptual physics chapter 5 newton's third law of motion
- Imagery in a very old man with enormous wings
- Pilot proficiency award program
- Frederiksborggade 42
- Desain pondasi tiang bendera
- Pt lion wings
- I will be still know you are god
- Frieda the fly flaps its wings
- Bsnl wings
- Two wings of pakistan
- A very old man with enormous wings discussion questions
- Kangaroo wings lajpat nagar
- Condor soaring
- Animals without wings
- Dragon fly
- Odonata wings
- Straightforward, literal definition
- A sudden blow the great wings beating still
- Buffalo wild wings orientation dress code
- Lower prices you can trust always slogan
- No wings
- Odonata wings
- Odonata wings
- Animal wings
- Odonata wings
- The man with no imagination has no wings
- It's got four
- Theme of the gift of the magi
- Wings of dove by edward kamau brathwaite
- Quantifier of cheese
- Buffalo wild wings payroll
- Grading of chicks
- Bat wing evolution
- Easter wings
- Under my wings everything prospers
- Nasdaq: bwld
- Alcohol is the most commonly used drug in our society
- Chapter 31 schizophrenia and other psychoses
- Advantages and disadvantages of payback method
- Chapter 9 net present value and other investment criteria
- Chapter 15 alcohol other drugs and driving
- Advantage and disadvantage of npv
- Chapter 9 net present value and other investment criteria
- Chapter 15 alcohol other drugs and driving
- Logarithmic exponential and other transcendental functions
- Chapter 11 real estate and other investments
- Smooth directional wave patterns
- Curved lines milady
- Chapter 8 section 4
- Chapter 8 section 4 other organizations
- Chapter 42 assisting in other medical specialties
- Chapter 3 section 3 change by other means
- Chapter 10: other public-key cryptosystems
- Chapter 11 section 3 other expressed powers
- Chapter 42 assisting in other medical specialties
- What are two and three dimensional shapes
- Have smooth even edges and are measurable
- Similar figures worksheet
- Similar figures are congruent
- Ammonia bond angle and shape
- Area of composite shapes
- Compare and classify geometric shapes
- 3d shapes edges vertices and faces
- Lines and shapes drawing
- A cube has 6 faces and 8 vertices
- Area and perimeter of irregular shapes
- Generally restful like the horison where the sky meets land
- Area and volume of similar shapes
- Similar shapes worksheet
- Similar shapes and proportions lesson 4-1
- Area of compound shapes worksheet