ZM9110 Discharge Over A Notch Didactic Equipment Vocational Training Equipment Fluid Mechanics Lab Equipment
1. Equipment introduction
1.1 Overview
In hydraulic engineering, weirs are often used to regulate flow in rivers and other open channels. In some cases, the relationship between the water level upstream of the weir and the flow rate above it is known, so the flow rate at any time can be determined by observing the upstream water level. Figure 1 shows two different shapes of overflow weirs. One type of overflow weir is formed by cutting a rectangular incision on a vertical plate, and the other is formed by cutting a V-shaped incision. Such notches usually have sharp edges so that when water flows it will flow straight out.
The purpose of these experiments was to derive the relationship between head and discharge over rectangular and V-notched weirs. The V-shaped incision is divided into two types: 15° and 45° for comparison.
1.2 Features
This is an experimental device for measuring fluid flow. It uses hydraulic pressure to control the water flow and can conduct flow measurement experiments under different conditions. The device has compact structure and easy operation, and is suitable for teaching demonstrations and student experimental operations.
2. Technical parameters
Operating conditions: +5°C to +40°C
Size: 920mm*618mm*460mm

3. Components list and detailed introduction
3.1 Main part:
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No
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Name
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1
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wide end module
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2
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Contraction and Short Channel Modules
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3
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Vertical baffle
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4
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Weighing water tank module
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3.2 Equipment configuration list
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No
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Name
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Qty
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Compoenent 1
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PVC Pagoda connector
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1
|
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Compoenent 2
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porous disk
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1
|
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Compoenent 3
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Depth Gauges
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1
|
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Compoenent 4
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dial indicator stylus
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1
|
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Compoenent 5
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Vertical baffle
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3
|
4. Experiment list
Experiment 1 Flow theory experiment on sharp edge weir
Experiment 2 Additional Gap and Related Theoretical Experiments
