Product Search

FLUID MECHANICS

F9092 Fluid Properties & Hydrostatics Bench - Issue 13

The Armfield Properties of Fluids and Hydrostatics Bench is designed to demonstrate the properties of fluids and their behaviour under hydrostatic conditions (fluid at rest). This allows students to develop an understanding and knowledge of a wide range of fundamental principles and techniques, before studying fluids in motion.

ORDERING SPECIFICATION

• A self-contained and mobile unit for demonstration of the properties of fluids and hydrostatics.

• The equipment is mounted on a steel-framed bench fitted with castors.

• The bench top incorporates a recessed plastic sink.

• A variety of measuring devices is incorporated in the unit including a universal hydrometer, range 0.70 to 2.00; falling sphere viscometer; hook and point gauge; hydrostatic pressure apparatus; Pascal's apparatus; double scale lever balance with displacement vessel; bucket and cylinder; metacentric height apparatus; direct reading barometer range 585 to 790mm; dial pressure gauge range 0 to 200 kN/m2 (kPa); dead weight pressure gauge calibrator with weights; thermometer range -10°C to +50°C.

• These devices allow a full range of 16 experiments to be carried out, demonstrating the properties of fluids, the effects of static pressure, the operation and application of pressure gauges and manometers and the investigation of the stability of floating bodies.

• A comprehensive manual is included describing how the experiments are performed as well as how to commission the equipment.

TOP

Instructional Capabilities

The provision of practical instruction exercises demonstrating the principles of fluid mechanics, in particular:

Understanding the properties of fluids:
> determining the density, specific gravity and viscosity of different liquids
> observing the effects of capillarity

Understanding the effects of static pressure:
> demonstrating that the free surface of a static liquid is horizontal
> studying the effect of flow on a free surface
> measuring changes in liquid level
> studying the relationship between intensity of liquid pressure and depths
> determining the position of the centre of pressure on a plane surface

Studying the operation and application of pressure gauges and manometers:
> using a direct reading Mercury barometer (Mercury not supplied)
> measuring air and water pressure using manometers
> comparing results obtained from various devices
> calibrating a Bourdon-type pressure gauge using a dead weight pressure gauge calibrator

Investigating the buoyancy force and stability of floating bodies:
> verifying Archimedes' principle
> determining metacentric height

TOP

Description

The equipment is mounted on a steel-framed bench fitted with castors.
A variety of measuring devices is incorporated, either fastened to the back of the bench or freestanding. Water is stored in a polythene tank situated on the lower shelf of the bench.

The water can be transferred by two positive displacement hand pumps either to an elevated open storage tank connected to a number of glass tubes for free surface studies, or to a plastic sink recessed into the working surface so that bench top experiments may be conducted without spillage. All excess water is returned to the storage tank via the sink drain.

The following experimental apparatus is included:
> universal hydrometer and hydrometer jars
> falling sphere viscometers
> free surface tubes
> hook and point gauge
> Mercury barometer (Mercury not supplied)
> Bourdon gauge
> u-tube manometers
> deadweight pressure gauge calibrator and weights
> hydrostatic pressure apparatus
> Pascal's apparatus
> parallel plate capillary apparatus
> capillary tube apparatus
> lever balance with displacement vessel, bucket and cylinder
> metacentric height apparatus
> measuring cylinder
> thermometer
> air pump
> 600ml beaker
> stop clock

TOP

Technical details

Universal hydrometer: range 0.70 to 2.00 sub-divided in 0.01 intervals
Falling sphere viscometer: 40mm tube diameter
Hydrostatic pressure apparatus: comprises counter-balanced precision quadrant pivotted on knife edges at its centre of arc

Direct reading barometer: with compensated silvered metal scale range 585 to 790mm subdivided in 1mm intervals includes thermometer

100mm dial pressure gauge: range 0 to 200 kN/m² (kPa) and equivalent head of water in metres

Dead weight pressure gauge calibrator: with 2 x .5 kg, 1kg and 2.5kg weights
Lever balance: 178mm diameter pan, hook for use in buoyancy experiments, anti-parallax cursor, double scale 0 to 0.25kg and 0 to 1.00kg

Thermometer: range -10°C to +50°C

.

TOP

Complementary Products

F1: Hydraulics Bench and Accessories
F1-301: Computer Aided Learning Programs (PC: WindowsTM)
F5: Osborne Reynolds' Demonstration
F9092: Fluid Properties & Hydrostatics Bench
F10: Cavitation Demonstration
F12: Particle Drag Coefficients
F14: Hydrogen Bubble Flow Visualisation System

TOP

Optional Accessories

Consequent to its hazardous nature many technicians prefer not to use Mercury or its use may be prohibited in the laboratory. In any case Armfield is unable to include it in the supply with the purchase of Mercury manometers due to shipping restrictions. With this in mind Armfield offers a hand held, portable, battery operated pressure meter (H12-8) which is capable of measuring pressures of air or water from 0-2000mBar (0- 1500mm Hg).

A full description and ordering specification is provided in data sheet
H12: Manometers and Pressure Meters.

TOP

Recommended Instruments

Vernier caliper
Reference pressure gauge - Bourdon type
Electronic top loading balance

TOP

Shipping specification

Volume: 2.7m³
Gross weight: 270kg

TOP

Overall dimensions

Height: 1450mm
Width: 1830mm
Depth: 610mm

TOP

Extended 2 year Warranty on all Armfield Products

DATA SHEET

PRODUCT CATEGORY:
Engineering Education