Web-outs, Announcements, Homework Assignments & Solutions

Spring 2015 - Part III

- LABS start the week of February 2, and will be held EVERY week. Make sure you visit the Lab website and print the corresponding documents BEFORE each lab.
- 22nd, 23rd & 24th classes (April 14, 21 & 23). Reading assignment: pp.180-182 (Reynolds Transport Theorem), pp. 227-228, and pp. 252-279 (Energy Equation)
- A supplement on the Reynolds Transport Theorem - Integral form of the conservation of mass
- A supplement to the solution of Example 6.6 of the textbook
- The Energy equation for uniform inflow and outflow
- Pictures of some pumps: A (centrifugal) pump - An (axial) pump which is part of a waterjet used for the propulsion of a high speed boat
- Pictures of some turbines: An impulse turbine - Wind turbine farm - Ocean current turbine - Steam turbine (rotor part) - Hoover Dam generators (the turbines are underneath the generators and cannot be seen in this picture - Fig. 14.22 on p. 542 of the textbook shows drawings of a Francis turbine used in a hydro-electric plant).
- Improved solution of Example 7.6
- Homework No. 10 - Solutions

- 25th and 26th classes (April 28 & 30): Reading assignment: pp. 359-383 (Laminar and Turbulent flow inside pipes)
- Review of formulas for laminar flow and turbulent flow inside pipes.
- The Moody Chart --- Table 10.4 --- Table 10.5
- Pictures of laminar and turbulent flow, and instantaneous vs. mean turbulent flow around a sphere
- The following movies show the unsteady velocity of the turbulent flow-field close to the walls of UT/CAEE's flume, as measured (every 1/300 of a sec) with our PIV system (see the Turbulence Lab Description for details on the setup and flow conditions, and for some comparisons with predictions):

- 27th and 28th classes (May 5 & 7): Reading assignment: Ch. 8 (Dimensional Analysis and Similitude)
- Example on dimensional analysis
- Some notes on Similitude - Tables and Figures from the Appendix of the textbook
- Homework No. 11 - Solutions
- The need for CFD (Computational Fluid Dynamics):
- The
Navier-Stokes equations (the
*differential form*of the momentum equation, of which the integral form we covered in class) - Visualization of flow past a cylinder and a simulation of the flow using ANSYS_Fluent (a commercial CFD package). Note the flow starts as symmetric around the horizontal axis, but then it reveals the asymmetric vortex (swirl) patterns observed in the experiment.
- Several CFD simulations, of which the results you may visualize (PRELIMINARY)

- The
Navier-Stokes equations (the

- >>>>>>> FINAL EXAM on Monday, May 18, 2pm-5pm, in CPE 2.204