# Fluid Systems

## 25 terms · Project Lead The Way - Pathway to Technology Foundation Course Lesson 4.3

### Accumulator

A device (as in a hydraulic system) in which a fluid is collected and especially in which it is kept under pressure as a means of storing energy.

### Actuator

A device that transfers fluid or electrical energy into mechanical energy.

### Bernoulli's Law

A change in the velocity of a fluid caused by a constriction produces an opposite change in pressure.

### Boyle's Law

The volume of a gas at a constant temperature is inversely proportional to its pressure.

### Centrifugal

(1) Tending to move away from a center. (2) A type of hydraulic pump.

### Charles' Law

The volume of a gas at a constant pressure is directly proportional to its temperature.

### Compressor

A device that converts mechanical force into pneumatic energy.

### Diaphragm

Part of a pump that consists of a flexible membrane.

### Displacement

Movement of an object through a distance.

### Dynamics

The behavior of matter when in motion; (physics) the study of why objects move.

### Filter

A component used to remove impurities from air or liquids.

### Fluid

The medium used to transfer power can be a liquid or a gas.

### Fluid Tank

A reservoir for liquid or a pressure tank for gas.

### Hydraulic Fluid

A liquid that is used in hydraulic systems to transfer energy; usually an oil-based substance

### Kinetic Energy

The energy of an object due to its mass and motion; calculated using the objects mass, m, and velocity, v. KE=1/2mv*v

### Pascal's Law

The law that an external pressure applied to a fluid in a closed vessel is uniformly transmitted throughout the fluid

### Pressure

The force generated when energy is applied to a fluid; force per unit area.

### Pump

A device that converts mechanical energy to fluid energy.

### Reciprocating

Motion back and forth along a linear path.

### Regulator

Any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc.

### Statics

The study of objects in a state of equilibrium.

### Temperature

A measurement of how warm something is; also the average kinetic energy of the individual molecules of a substance

### Valve

Any of numerous mechanical devices by which the flow of liquid, gas, or loose material in bulk may be started, stopped, or regulated by a movable part that opens, shuts, or partially obstructs one or more ports or passageways.

### Viscosity

The thickness or flow characteristic of a liquid; the more viscous, the slower a liquid will flow.

### Volume

The amount of space occupied by a three-dimensional object as measured in cubic units.