Waller Creek IntakeCFD Modeling and Simulation

ALDEN Research Laboratory Inc.30 Shrewsbury St., Holden, MA 01520

Preliminary Results

October 14, 2009

2 Year Flow Scenario

1

CFD model geometry with proposed flood control turning vane

Flood control turning vane

1 23

4

5

6

2

Plot of velocity contours with vectors

(Slice plane cut horizontally at elevation 465 Ft.)

Time = 250 sec.

3

Plot of velocity contours with vectors

(Slice plane cut horizontally at elevation 470 Ft.)

Time = 250 sec.

4

Plot of velocity contours with vectors

(Slice plane cut horizontally at elevation 476 Ft.)

Time = 250 sec.

5

(Slice plane cut vertically at the center of the morning glory spillway.)

Plot of velocity contours with vectors

slice plane cut locationsTime = 250 sec.

6

(Slice plane cut vertically at the center of the morning glory spillway.)

Plot of velocity contours with vectors

slice plane cut locationsTime = 250 sec.

7

Plot of velocity contours

Time = 250 sec.

(Slice planes cut vertically at the center of the morning glory spillway at different locations.)

Isometric view 1

8

Plot of velocity contours

Time = 250 sec.

(Slice planes cut vertically at the center of the morning glory spillway at different locations.)

Isometric view 2

9

2

3

45

6

Velocity contour through each bar screen

Time = 250 sec.

Isometric view 1

10

1

2

34

5

6

Velocity contour through each bar screen

Time = 250 sec.

11

Isometric view 2

12

3

4

5

6

Velocity contour through each bar screen

Time = 250 sec.

12

Isometric view 3

Isosurface plot of water colored with velocity magnitude

(Isometric view)

Time = 250 sec.

13

Isosurface plot of water colored with velocity magnitude

(Isometric view)

Time = 250 sec.

* same with slide 13 but different color scale

14

Isosurface plot of water colored with velocity magnitude

(Plan view)

Time = 250 sec.

15

Isosurface plot of water colored with velocity magnitude

(Plan view)

Time = 250 sec. * same with slide 15 but different color scale

16

Isosurface plot of water colored with water surface elevation

(Isometric view)

Time = 250 sec.

17

Isosurface plot of water colored with water surface elevation

(Plan view)

Time = 250 sec.

18

-100%-90%-80%-70%-60%-50%-40%-30%-20%-10%

0%10%20%30%40%50%60%70%80%90%

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Percent flow variations at bar screen 1

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Percent flow variations at bar screen 2

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Percent flow variations at bar screen 3

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Percent flow variations at bar screen 4

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Percent flow variations at bar screen 5

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Percent flow variations at bar screen 6

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-100%-90%-80%-70%-60%-50%-40%-30%-20%-10%

0%10%20%30%40%50%60%70%80%90%

100%

100 150 200 250 300 350 400

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Percent flow variations through each bar screen

bar screen 1

bar screen 2

bar screen 3

bar screen 4

bar screen 5

bar screen 6

25