{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

summary3 - Analysis for WTC Robustness 15.20 Main idea Do...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 3 - summary Additional examples of application of Pi-theorem for engineering problems (flow problem, WTC, tall buildings) Combine two analyses (wind drag force AND strength of building) into robustness analysis Drag force analysis Strength analysis Robustness analysis F γ = x ,lim 1 F D F x ,lim mg 1 N 2 b γ = = Gal F D 2 F D N Gal h (1) Experiments provide functional relationship: or… (2) Theoretical approaches (strength of materials theory) provide relation for strength analysis
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Analysis for WTC: Robustness 15. .20 Main idea: Do few lab experiment to get relationship between Pi i and then rescale problem! (Important engineering concept) 400 200 100 60 40 20 10 6 4 2 1 0.6 0.4 0.2 0.1 0.06 10-1 10 10 1 10 2 10 3 10 4 10 5 10 6 10 7 Smooth Cylinder Smooth Sphere D E C B A Reynolds Number Re = Π 1 =-1 UD v C D = 2 Π = 2F ρ a (UD) 2 ρ a U 2 D 2 C D = 24 Re Π = F D UD v = F ( Π 1 = ) Figure by MIT OpenCourseWare....
View Full 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