{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

hw2 - S09 - Chemical Engineering 150A Spring Semester 2009...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemical Engineering 150A Spring Semester, 2009 Homework 2: Dimensional Analysis and Pipe Flow Problem 1 The power output of a hydraulic turbine depends on the diameter D of the turbine, the density ρ of water, the height H of water surface above the turbine, the gravitational acceleration g , the angular velocity ω of the turbine wheel, the volumetric discharge rate Q of water through the turbine, and the efficiency η of the turbine. a) Using the Buckingham Pi Theorem, generate a set of appropriate dimensionless groups using the density of water, turbine diameter, and angular velocity of the turbine wheel as the core group of variables. b) What two criteria does the set of core variables have to satisfy? Problem 2 A long structural component of a bridge has the cross section shown in the figure below, with D = 0.1 m and H = 0.3 m. We would like to determine the drag per unit length, l D , on this structure at a representative wind velocity of 50 km/hr (standard air can be assumed) through the use of a small-scale model that is to be tested in a water tunnel.
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
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