Fluids. Hydrodynamics.

What is "Flow rate" in hydrodynamics?

• The speed at which a fluid crosses a pipe.

  v= m/s

• The volume of fluid that crosses a section of pipe per unit of time.

  G = m³ / s

• The amount of matter that flows through a section of the tube and is lost due to friction.

• In a cross-sectional area of the pipe, the flow of water affected by speed is observed.

  f(A) = m²

What does the continuity equation describe?

• The continuity equation is Q₁ = Q₂ or G₁ = G₂ and is used to determine where there are leaks in the system.

• Analyzes the pressure-velocity relationship of the fluid within the pipe, in relation to its area.

  P₁v₁ = P₂v₂

• Analyzes the behavior of fluids in different sections of the pipe:

  G = V / t

• Describes the conservation of matter:

  G₁ = G₂

  Based on the expression: A₁v₁ = A₂v₂

The Torricelli Theorem describes...

• the constant speed of a fluid at all points.

• the speed of a fluid equating with the speed of a body in free fall and affected by pressure.

• the speed of a fluid affected by the pressure and density of the fluid.

• the speed of a fluid as the cause of pressure in a fluid.

What does Bernoulli's Principle consist of?

• Bernoulli's Principle is used to measure the density of fluids at rest.

• Bernoulli's Principle states that the potential energy is constant in an incompressible fluid.

• Bernoulli's Principle establishes that kinetic energy is inversely proportional to pressure.

• Bernoulli's Principle sums pressure, kinetic energy, and potential energy to describe the flow rate.

What are the characteristics of ideal fluids?

• Non-viscous, compressible, follow the laws of hydrostatics but not hydrodynamics

• Non-viscous, incompressible, perfectly follow the laws of hydrostatics and hydrodynamics.

• Viscous, compressible, do not follow the laws of hydrostatics and hydrodynamics

• Viscous, incompressible, do not follow the laws of hydrostatics or hydrodynamics

What elements are considered to classify fluids as ideal or real?

• Viscosity

• State of matter

• Density

• Flow and turbulence

Which of the following fluids has the lowest viscosity.

• Water

• Honey

• Ketchup

• Peanut butter

• Tar

Which of the following fluids has the highest viscosity.

• Water

• Honey

• Ketchup

• Peanut butter

• Tar

Pressure affects the density of fluids.

• True

• False

Why consider viscosity in hydrodynamics?

• Because it affects the flow of a fluid.

• To add data to the system.

• Because it affects the density of fluids.

• Because now we can expect the 10th drop of tar.