Waller Creek Intake CFD Modeling and Simulation ALDEN Research Laboratory Inc. 30 Shrewsbury St., Holden, MA 01520 Preliminary Results September 18, 2009.

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Waller Creek Intake CFD Modeling and Simulation ALDEN Research Laboratory Inc. 30 Shrewsbury St., Holden, MA 01520 Preliminary Results September 18, 2009 Flood Control Turning Vane Design

CFD model geometry with proposed flood control turning vane Flood control turning vane Isometric view 1Isometric view 2

CFD model geometry with proposed flood control turning vane Flood control turning vane

V 6 = 3.32 ft/s V 5 = 3.14 ft/s V 4 = 2.04 ft/s V 3 = 3.63 ft/s V 2 = 3.07 ft/s V 1 = 3.4 ft/s Average velocity (in the bar screen area) Time = 2540 sec. 1 2 34 5 6 (velocity color scale is the actual velocity )

88.76 % 98.6 % 100 %80.13 % 95.19 % 80.12 % Percent of bar screen area at or below 4 ft/s 1 2 34 5 6 Time = 2540 sec. (velocity color scale is the actual velocity )

1 2 3 4 5 6 Velocity contour through each bar screen Time = 2540 sec. (velocity color scale is the actual velocity ) Iso-view 1

1 2 3 4 5 6 Velocity contour through each bar screen Time = 2540 sec. (velocity color scale is the actual velocity ) Iso-view 2

1 2 3 45 6 Velocity contour through each bar screen Time = 2540 sec. (velocity color scale is the actual velocity ) Iso-view 3

Velocity contour at different locations with different color scales Time = 2540 sec.

Plot of velocity contours with vectors (slice plane cut at elevation 476 ft.) Isometric View Same with slide 10 with different color scale Time = 2540 sec.

Iso-surface plot of water colored with velocity magnitude Isometric View

Iso-surface plot of water colored with velocity magnitude Isometric View Same with slide 10 with different color scale Time = 2540 sec. same with slide 11 but different color scale

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