10657419 10204587508741646 1236760862 n.docx - CE371...

CE371
Hydromechanics
Bernoulli’s Theorem Demonstration
Lab Report No1
Cihat ACAR
200204040
07.12.2015
Introduction

The flow of a fluid has to conform with a number of scientific principles in particular the
conservation of mass and the conservation of energy. The first of these when applied to a liquid
flowing through a conduit requires that for steady flow the velocity will be inversely proportional
to the flow area. The second requires that if the velocity increases then the pressure must decrease.
Bernoulli's apparatus demonstrates both of these principles and can also be used to examine the
onset of turbulence in an accelerating fluid stream.
Both Bernoulli's equation and the continuity equation are essential analytical tools required for the
analysis of most problems in the subject of mechanics of fluids.
The converging-diverging nozzle test apparatus (Figure 1.1) is used to show the validity of the Bernoulli
Equation. It is also used to show the validity of the continuity equation where the fluid flow is relatively
incompressible.