Daniel Bernoulli discovered Bernoulli's principle in the 18th century while studying water flow through containers. Bernoulli's principle states that as the velocity of a fluid increases, the pressure within the fluid decreases. Some applications of Bernoulli's principle include venturi tubes, perfume sprayers, pitot tubes, the curved path of spinning balls, and the lift force created by airplane wings. The presentation provided examples of how Bernoulli's principle explains these phenomena in fluids and discussed its importance.

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HOOGHLY ENGINEERING & TECHNOLOGY COLLEGE
Presentation on : Bernoulli’s Principle and applications
By Tanumoy Dey, Dept. : CIVIL ENGINEERING

2. The History of Bernoulli’s Principle
Daniel Bernoulli
(1700-1782)
 The Swiss mathematician and
physicist discovered the
Bernoulli's principle.
 He found the concept of Bernoulli’s
principle when doing the
experiment of water flow through
the container.
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3. Bernoulli’s Equation
Where p is the pressure, ρ is the density, v is the velocity,
h is elevation, and g is gravitational acceleration
“Bernoulli's theorem states that in a steady,
ideal flow of an incompressible fluid, the total
energy at any point of the fluid is constant” .
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4. Velocity of fluid at a narrow
passage is faster than at a broad
passage.
As the velocity increases, the
pressure decreases (Bernoulli’s
Principle)
Explanation
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5. Venturimeter
A spinning
ball curves
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6. Venturi Tube
A2 < A1 ; V2 >V1
According to Bernoulli’s Law,
pressure at A2 is lower.
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7. Using Bernoulli’s principle, we find that the speed of fluid coming
from a spigot on an open tank is:
This is called Torricelli’s
theorem.
Determining the velocity and debit of water
spray in perforated tank
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8. Perfume sprayer
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9. Pitot tube
Pitottube is a pressure measurement instrument
used to measure fluid flow velocity.
v 2 'gh
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10. A spinning ball curves
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11. Lift force of airplane’s wings
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12. Sources
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13. Acknowledgement
 Thanks to my college for giving me such an opportunity.
 The whole Civil Engineering department.
 My friends for helping me.
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14. THANK YOU
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