materi bernoulli

1. Fisika Aplikasi
Dr. rer. nat. Sintia W. N.
2022

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BIG CONCEPT

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the speed goes up, the pressure goes down

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1. Applications of Bernoulli Equation

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7. Fire hoses used in major structure fires have
inside diameters of 6,40 cm. Suppose such a hose
carries a flow of 40 L/s starting at a gauge
pressure of 1,62×10^6N/m^2. The hose goes 10
m up a ladder to a nozzle having an inside
diameter of 3,00 cm. Assuming
negligible resistance, what is the pressure in the
nozzle?
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8. 2. Change in Velocity

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10. Laminar Boundary Layer
Flow
◍ Laminar boundary-layer flows occur when a
moving viscous fluid comes in contact with
a solid surface and a layer of rotational
fluid, the boundary layer, forms in response
to the action of viscosity and the no-slip
boundary condition on the surface.

11. Laminar Boundary Layer
Flow

12. Turbulent Boundary Layer
Flow
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13. The transition from laminar to
turbulent flow in the boundary layer
depends on the Reynolds number.
Skin friction is lower for laminar
boundary layer flow; therefore, the
location of the transition T affects
the drag and lift measurements in
tunnels.
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14. Moody Diagram
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