Module 5

Hydraulics Field Assignment

I calculated the Velocity, Area, and Discharge at Second Dam. I used the bridge to calculate the cross-section. There were 61 planks of wood and each with a width of 10 inches and I multiply them together to get a cross-section of 51 feet. Figure 1.1 gives a visual representation of the cross-section I measured. I calculated the Velocity by using the orange peel method but with a stick instead. Figure 1.2 shows my calculations and answers.

Figure 1.2

Figure 1.1

Annotated Images

Figure 1.2 and 2.2 were taken in Third Dam and edited through Adobe Photoshop. Figure 2.2 Its starts out as uniform flow but then It becomes convergent because the bridge Is constricting the channel. After It passes the bridge It becomes divergent because the flow Is spreading out. This is also where a flow separation starts creating a big eddie area. When the two channel come back together Its a non uniform flow because the water Is going different directions and speeds.

Figure 2.1

Figure 2.2

Hydraulic Jump

Video describing the components of a Hydraulic Jump

Figure 3.1

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