lec37 - Aerodynamics Lecture 37 The Supercritical Airfoil...

Info icon This preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Aerodynamics The Supercritical Airfoil The Area Rule Delta Wing Leading Edge Extension (LEX) 37.1 Lecture 37 Aerodynamics Subsonic Compressible Flow AE311 Aerodynamics Manoj T. Nair IIST
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Aerodynamics The Supercritical Airfoil The Area Rule Delta Wing Leading Edge Extension (LEX) 37.2 Agenda 1 The Supercritical Airfoil 2 The Area Rule 3 Delta Wing 4 Leading Edge Extension (LEX)
Image of page 2
Aerodynamics The Supercritical Airfoil The Area Rule Delta Wing Leading Edge Extension (LEX) 37.3 The Supercritical Airfoil I The Supercritical Airfoil High subsonic speeds applications requires airfoils with high critical Mach number Thin airfoil were used at high speeds as they had higher M cr High M cr meant high M dd
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Aerodynamics The Supercritical Airfoil The Area Rule Delta Wing Leading Edge Extension (LEX) 37.4 The Supercritical Airfoil II NACA 64-series airfoils, originally designed for laminar flow, were found to have high M cr , accidently Hence, NACA 64-series has seen wide application on high-speed airplanes Thinner airfoils are preferred as thin airfoils have higher M cr However, there is a limit to how thin an airfoil can be Certain thickness is required for structural strength There should be room for storage of fuel For a given thickness how can we increase M dd ? One approach is to increase M cr Another is to increase the increment between M cr and M dd This led to the design of a new family of airfoils - supercritical airfoils The supercritical airfoil was developed by Richard Whitcomb in 1965 at NASA Langley
Image of page 4
Aerodynamics The Supercritical Airfoil The Area Rule Delta Wing Leading Edge Extension (LEX) 37.5 The Supercritical Airfoil III
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Aerodynamics The Supercritical Airfoil The Area Rule Delta Wing Leading Edge Extension (LEX) 37.6 The Supercritical Airfoil IV
Image of page 6
Aerodynamics
Image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern