The study of how fluids behave and interact with forces.
What are the two primary branches of fluid mechanics?
Hydrodynamics and Aerodynamics
What is viscosity?
The measure of a fluid's resistance to flow.
What is Bernoulli's principle?
As the speed of a fluid increases, its pressure decreases.
What is Pascal's principle?
Pressure applied to a fluid is transmitted uniformly to all parts of the fluid.
What is Archimedes' principle?
Any object placed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object.
What is surface tension?
The elastic tendency of a fluid surface which makes it acquire the least surface area possible.
What is hydrostatic pressure?
The pressure exerted by a fluid at equilibrium due to the force of gravity.
What is the equation of continuity?
The volume of fluid flowing per second is constant at any point of a pipe with uniform cross-sectional area.
What is Stokes' law?
The drag force experienced by a small sphere moving through a viscous fluid at constant velocity is directly proportional to the velocity and radius of the sphere.
What are the units for viscosity?
Pascal-seconds (Pa·s) or poise (P)
What is the Reynolds number?
A dimensionless quantity that describes the flow characteristics of a fluid.
What is a Venturi tube?
A device used to measure fluid flow through a pipe.
What is the definition of a fluid?
A substance that can flow and take the shape of its container.
What is laminar flow?
A smooth, orderly flow pattern of a fluid in which the layers of the fluid slide smoothly past each other.