EXIT THIS SURVEY Exit this survey Subject content: Incompressible Potential Flow 1. * 1. Please think how you learned this section. What did you find to be helpful? Please tick all that apply. 1. Read the Powerpoint notes. 2. Wrote down the notes on paper to see if you agreed with the logic 3. Read the textbook 4. Tried the examples in the Solved Problems library 5. Solved old tests given by the instructor 6. Asked friends * 2. Please list the top 5 concepts that you learned in this module. 1. 2. 3. 4. 5. * 3. What concepts pose(d) difficulties for you? Please discuss, and also how you solved the difficulty if you did. * 4. Explain as to a 6th grader, the concept of Potential Flow. Under what conditions can you assume that you can solve a problem assuming potential flow, and where can you not assume this? Give an example of each (from the 6th-grader's experience). * 5. What is a Velocity Potential? If you had to define an Acceleration Potential, how would you define it? * 6. What conservation equation reduces to the Laplace equation for low speed flow? If the flow were unsteady, what would be the resulting equation? * 7. In low-speed potential flow, the velocity field can be found without knowing anything about the pressure. Is this true? If so, why, and how would you find the velocity field and then find the pressure field? If it is not true, how would you find the pressure and velocity fields? * 8. Of the 4 basic types of fluid motion, which types can exist in a steady incompressible potential flow? Why? (can you prove this?) * 9. Describe 4 different "point" singularities used to get solutions to the Laplace equation, and one "distributed singularity". Explain in 1 sentence each, what purpose each serves. * 10. A hurricane with a maximum sustained wind speed of 150mph, and an eye diameter of 20km, is located 200km to the north and 50 km to the east of Aerodynamixville. Estimate using potential flow theory, the steady wind speed and direction that may be felt at Aerodynamixville at that time. (If the eye diameter were to suddenly increase to 30km, what would the new speed and direction of the wind at A'ville be? And this you can ponder, but the answer is not very sensible: how long will it take for this change to be felt at A'ville?) Done