1.
BASIC PRINCIPLES OF AERODYNAMICS

2.
OUTLINE
 INTRODUCTION
 DEFINITIONS
 BERNOULLI´S PRINCIPLE
 VENTURI EFFECT
 APPLICATIONS
 BIBLIOGRAPHY

3.
 Aerodynamics is a branch of dynamics concerned
with the study of the motion of air.
 In 1726, Isaac Newton became one of the first
aerodynamicists in the modern sense when he
developed a theory of air resistance, which was later
verified for low flow speeds.

4.
Daniel Bernoulli proved experimentally that "the internal pressure of a fluid
(liquid or gas) decreases as the fluid velocity increases" .
Bernoulii’s Principle

5.
VENTURI EFFECT
Phenomenon in which a moving fluid inside a closed conduit
decreases its pressure when the velocity increases when passing
through a zone of smaller section.

6.
Principle of conversation of energy when if
Pressure decrease the speed increase or viceversa

7.
Formula
𝑝1 − 𝑝2 =
𝜌
2
𝑣2
2
− 𝑣1
2

8.
Different Applications for Venturi
Tubes
 Important air is considered like a fluid.
 It can be used to calculate the flow rate from these measured pressure
differences

9.
Basic Carburetor
• Substances outside of the Venturi tube
are sucked into the low-pressure area
• Different pressure produce that basic
carburetor work.

10.
Venturi in airplanes

11.
 APPLICATIONS

12.
BIBLIOGRAPHY
 Fairclough, C ( 2015). Exploring the Venturi Effect “, COMSOL, URL :
https://goo.gl/RKxu8a last accessed on [06/06/2018]
 NASA ( n.d.),Bernoulli and Newton,Available in: https://goo.gl/fjUcER , last
accessed on [06/06/2018]
 "The Venturi effect". Wolfram Demonstrations Project. Retrieved 2009-11-
03.

13.
Any Question ?