Fluid dynamics

related topics
{math, energy, light}
{math, number, function}
{acid, form, water}
{ship, engine, design}
{line, north, south}


In physics, fluid dynamics is a sub-discipline of fluid mechanics that deals with fluid flow—the natural science of fluids (liquids and gases) in motion. It has several subdisciplines itself, including aerodynamics (the study of air and other gases in motion) and hydrodynamics (the study of liquids in motion). Fluid dynamics has a wide range of applications, including calculating forces and moments on aircraft, determining the mass flow rate of petroleum through pipelines, predicting weather patterns, understanding nebulae in interstellar space and reportedly modeling fission weapon detonation. Some of its principles are even used in traffic engineering, where traffic is treated as a continuous fluid.

Fluid dynamics offers a systematic structure that underlies these practical disciplines, that embraces empirical and semi-empirical laws derived from flow measurement and used to solve practical problems. The solution to a fluid dynamics problem typically involves calculating various properties of the fluid, such as velocity, pressure, density, and temperature, as functions of space and time.

Historically, hydrodynamics meant something different than it does today. Before the twentieth century, hydrodynamics was synonymous with fluid dynamics. This is still reflected in names of some fluid dynamics topics, like magnetohydrodynamics and hydrodynamic stability—both also applicable in, as well as being applied to, gases.[1]

Contents

Full article ▸

related documents
Casimir effect
Bose–Einstein condensate
Lens (optics)
Standard Model
Atomic orbital
Magnetohydrodynamics
Angular momentum
Kinematics
Modified Newtonian dynamics
Electromagnetic radiation
Lorentz force
Roche limit
Ohm's law
Frame of reference
Parallax
Lagrangian point
Sundial
Main sequence
Black body
Gravitational lens
Mercury (planet)
Polar coordinate system
Magnet
Torque
Superconductivity
Bohm interpretation
Permittivity
Infrared
Warp drive
Pressure measurement