Basic Thermodynamics
Bernoulli’s Equation Laboratory Design Exercise
Aim and Objectives
To develop a laboratory investigation to demonstrate the validity of Bernoulli’s equation using a convergent-divergent duct.
The objectives of the work are;
Design a laboratory investigation exercise using specified equipment to allow the characteristics of a convergent-divergent flow duct to be investigated and the validity of Bernoulli’s theorem to be tested.
Prepare and present the background theory to support the laboratory investigation.
Outline a detailed procedure for undertaking the laboratory investigation and present an appropriate result table that enables data for three volume flow rates through the venturi to be recorded and results analysed and presented using appropriate methods.
The designed laboratory exercise should include an element that demonstrates how the dynamic pressure at each wall static pressure tapping varies along the venturi.
Equipment
The equipment to be used to undertake the investigation is listed as;
Armfield F1-10 Hydraulics Bench which allows measurement of flow by
timed volume collection
(http://discoverarmfield.com/en/products/view/f1/complete-fluid-
mechanics-laboratory-f1-10 ),
Armfield F1-15 Bernoulli’s Theorem Apparatus
(http://discoverarmfield.com/en/products/view/f1-15/bernoulli-s-theorem-
demonstration ),
A stopwatch for timing the flow measurement.
Details of the equipment can be found using the links above, the apparatus can also
be viewed in the Fluids Lab, R1.49.
