{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Examples - AE 312 EXAMPLES 1 J C Dutton In an experiment to...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 AE 312 EXAMPLES J. C. Dutton 1. In an experiment to determine drag, a circular cylinder of diameter d was immersed in a steady, two-dimensional, incompressible flow. Measurements of velocity and pressure were made at the boundaries of the control surface shown. The pressure was found to be uniform over the entire control surface. The x-component of velocity at the control surface boundary was approximately as indicated by the sketch. From the measured data, calculate the drag coefficient of the cylinder based on the projected area and on the freestream dynamic head, 2 0 V 2 / 1 ρ . d V 2 1 Length Unit per Force Drag C 2 0 D ρ = 2. Air is expanded isentropically in a horizontal nozzle from an initial pressure of 1.0 MPa and initial temperature of 800 K to an exhaust pressure of 101 kPa. If the air enters the nozzle with a velocity of 100 m/s, determine the air exhaust velocity. Assume the air behaves as a perfect gas, with R = 287 J/kg·K and γ = 1.4. Repeat for a vertical nozzle with exhaust plane 2.0 m above the intake. 3. A normal shock wave occurs at the inlet to a diverging section as shown. The area ratio A b /A a is equal to 3.0. Find the Mach number and static pressure immediately behind the shock and the loss in stagnation pressure across the shock. Repeat for a shock at the exit. psia 2 P 5 . 2 M = = a b Normal shock psia 2 P 5 . 2 M = = a b Normal shock
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
2 4. For the air hammer problem, assume V U = 500 ft/s, T U = 70°F, and P U = 14.7 psia. Calculate the static pressure and temperature behind the wave and the velocity of the wave relative to the pipe walls. Also, find the stagnation pressure and stagnation temperature on both sides of the shock relative to both the wave and to the pipe walls.
Image of page 2
Image of page 3
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