# Conclusion Of Hydraulic Jump Experiment

2.2.1. purpose

1. to create/generate hydraulic jump

2. To clarify questions about the fluid flow.

3. To determine the slatrility and characteristics of hydraulic jump, performed in the laboratory using impulse momentum and energy equations are specific.

4. to compare between the depth of flow measurements and the results of the theory.

2.2.2. Basic Theory

A hydraulic jump occurs when the flow of the flow at a high speed exposure at a low-speed flow that occurs at the output. In theory, the flow going from the super critical flow towards the stream of subkritikal. Froude Number (Fr) is the number that characterizes critical flow:

Where:

V = flow velocity (m/s) g = acceleration of gravity (m/s2) y = darialiran fluid depth (m)

With:

• If Fr = 1, if the flow

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Equipment used:

• door glass with didingin Channels of water (sluice gate) and a channel setting (spillway)

• points measuring

• Manometers and scale the meter

• Pump

• the Stopwatch

2.2.4. The procedure for the experiment of Hydraulic Jump

1. Turn on the pump to supply water kesaluran

2. then close the end (tail gate) to provide an opportunity of water accumulates and to produce a hydraulic Jump.

3. Set the position of the Hydraulic Jump by setting the amount of the cover from the water.

4. Then measure the depth of the water in the base channels (bed) by using the points of measurement.

5. Next step, measuring the level of the surface of the water before it enters/crossing the spillway.

6. Measure the height of the spillway and the depth of water above the spillway.

7. Using the dots measurements then measure the level of surface water downstream from the jump.

8. Measure the y1 and y2.

9. Repeat the steps again measurements for a variety of Fr (Froude Number).

2.2.5. Data, calculations and graphs

A. Data

B. Calculation

1. Calculate the upstream and downstream Froude Number (Fr). If the values of calculation are eligible from the formation of the Hydraulic Jump? Using equation