1. Waller Creek Intake CFD Modeling and Simulation ALDEN Research Laboratory Inc. 30 Shrewsbury St., Holden, MA 01520 Preliminary Results October 5, 2009 500 Year Flow Scenario

2. CFD model geometry with proposed flood control turning vane Flood control turning vane 12 3 4 5 6

3. Isosurface plot of water colored with velocity magnitude (Isometric view) Time = 300 sec.

4. Isosurface plot of water colored with velocity magnitude (Plan view) Time = 300 sec.

5. Isosurface plot of water colored with velocity magnitude (Plan view) * same with slide 4 but different color scale Time = 300 sec.

6. Isosurface plot of water colored with water surface elevation (Isometric view) Time = 300 sec.

7. Isosurface plot of water colored with water surface elevation (Plan view) Time = 300 sec.

8. Plot of velocity contours with vectors (Slice plane cut horizontally at elevation 465 Ft.) Time = 300 sec.

9. (Slice plane cut horizontally at elevation 470 Ft.) Plot of velocity contours with vectors Time = 300 sec.

10. (Slice plane cut horizontally at elevation 476 Ft.) Plot of velocity contours with vectors Time = 300 sec.

11. (Slice plane cut vertically at the center of the morning glory spillway.) Plot of velocity contours with vectors slice plane cut locations Time = 300 sec.

12. (Slice plane cut vertically at the center of the morning glory spillway.) Plot of velocity contours with vectors slice plane cut locations Time = 300 sec.

13. Plot of velocity contours Time = 300 sec. (Slice planes cut vertically at the center of the morning glory spillway at different locations.) Isometric view 1

14. Plot of velocity contours Time = 300 sec. (Slice planes cut vertically at the center of the morning glory spillway at different locations.) Isometric view 2