Saturday, 11 August 2012

Applying Bernoulli's Principle

Bernoulli's Principle.

(Bernoulli's principle story)

1) Bernoulli's Principle states that the pressure of a fluid (liquid or gas) decreases at the region where the speed of fluid flow increases.

Relationship between speed of fluid flow and cross-sectional area.

Volume of fluid                       = A1v1
entering per second

Volume of fluid                       = A2v2
leaving per second              

The fluid is incompressible, so
A2v2 = A1v1

v2 = A1
v1    A2

2) To increase the kinetic energy, force is required to do work while flowing through the narrow section of the pipe.

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