Introduction to Fluid Mechanics

What is a fluid?

• A fluid is a substance that cannot change its volume.

• A fluid is a solid that maintains its shape.

• A fluid is a substance that can flow and take the shape of its container.

• A fluid is a gas that cannot flow.

Name two properties of fluids.

• Mass and volume

• Temperature and pressure

• Viscosity and density

• Color and texture

What is hydrostatic pressure?

• Hydrostatic pressure is the pressure that occurs only in vacuum conditions.

• Hydrostatic pressure is the pressure exerted by a gas in a closed container.

• Hydrostatic pressure is the pressure caused by moving fluids.

• Hydrostatic pressure is the pressure exerted by a fluid at rest due to gravity.

How does pressure change with depth in a fluid?

• Pressure increases linearly with depth in a fluid.

• Pressure remains constant regardless of depth in a fluid.

• Pressure fluctuates randomly with depth in a fluid.

• Pressure decreases with depth in a fluid.

What does Bernoulli's equation describe?

• Bernoulli's equation describes the conservation of energy in fluid flow.

• Bernoulli's equation describes the behavior of solid objects in motion.

• Bernoulli's equation explains the chemical reactions in gases.

• Bernoulli's equation is used to calculate the temperature of fluids.

Can you name a type of fluid flow?

• Turbulent flow

• Laminar flow

• Compressible flow

• Static flow

What is viscosity?

• Viscosity is the temperature at which a fluid boils.

• Viscosity is the density of a fluid.

• Viscosity is the measure of a fluid's resistance to flow.

• Viscosity is the speed of sound in a fluid.

How does viscosity affect fluid flow?

• Viscosity affects fluid flow by determining the resistance to flow; higher viscosity results in slower flow, while lower viscosity allows for faster flow.

• Higher viscosity always leads to faster flow.

• Viscosity only affects gases, not liquids.

• Viscosity has no effect on fluid flow.

What is mass transport in fluids?

• Mass transport in fluids refers to the chemical reactions occurring in gases.

• Mass transport in fluids is the process of heating water.

• Mass transport in fluids is the study of fluid viscosity.

• Mass transport in fluids is the movement of mass driven by diffusion, convection, and advection.

What is energy transport in fluid systems?

• Energy transport in fluid systems is solely dependent on radiation.

• Energy transport in fluid systems is primarily achieved through convection.

• Energy transport in fluid systems occurs only through conduction.

• Energy transport in fluid systems is achieved by diffusion alone.