Fluid
how liquids and gasses interact with the environment (wind/air/water), resistance impacts performance
Fluid is a substance that flows and has no fixed shape. It can be a liquid, gas or plasma. Liquids and gases are considered to be classical fluids as they exhibit properties such as viscosity, density, and compressibility.
Viscosity refers to a fluid’s resistance to flow. Its value depends on the type of fluid, temperature, and pressure. The higher the viscosity, the thicker the fluid, and the more difficult it is to pour or pump.
Density refers to the amount of mass an object has relative to its volume. Gases are less dense than liquids and have a lower mass per unit volume, while liquids are more dense than gases.
Compressibility refers to a fluid’s ability to change in volume under pressure. Gases are highly compressible, meaning they can be squeezed into a smaller space, while liquids are considered incompressible.
Fluid mechanics is a branch of physics that studies fluids and their behavior. It has important applications in fields like engineering, environmental science, and medicine.
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