Armfield Engineering Education

FLUID MECHANICS

F1-10 Accessory
F1-13 Flow over Weirs - Issue 19

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Two weir plates of different shape are provided allowing familiarisation and comparison with theory.

Order Specification |
Description |
Technical Details |
Demonstration Capabilities

| Shipping Specification and Dimensions

ORDERING SPECIFICATION

• Two weir plates to fit in channel of F1-10 hydraulics Bench

• Vernier hook and point gauge with carrier

• Stilling baffle

• Educational Software available as an option

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Description

The Flow over Weirs consists of five basic elements used in conjunction with the flow channel in the moulded bench top of the Hydraulics Bench.

(i) A quick release connector in the base of the channel is unscrewed and a delivery nozzle screwed in its place.

(ii) A stilling baffle locates into slots in the walls of the channel. The inlet nozzle and stilling baffle in combination promote smooth flow conditions in the channel.

(iii) A Vernier hook and point gauge is mounted on an instrument carrier which is located on the side channels of the moulded top. The carrier may be moved along the channels to the required measurement position.

(iv) The rectangular notch weir or

(v) vee notch weir to be tested is clamped to the weir carrier in the channel by thumb nuts. The weir plates incorporate captive studs to aid assembly.

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Technical Details

Technical Details
item	value
Overall dimensions of weir plates:	height 160mm width 230mm thickness 4mm
Dimensions of rectangular notch:	height 82mm width 30mm
Angle of vee notch weir:	90° inclusive
Hook & point gauge range:	0 to 150mm
Accuracy :	0.1mm

Flow Rate

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Demonstration Capabilities

> Demonstrating the characteristics of flow over a rectangular notch
> Demonstrating the characteristics of flow over a vee notch
> Determining the coefficient of discharge

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