Energy flux is the energy crossing a unit area per unit time. For a one-dimensional inviscid gas with internal-energy density W, it is
u(p+W+21ρu2).
Ancestors (4)
Incoming links (78)
- Antenna effective area
- Antenna gain
- Birefringence
- Birefringent walk-off
- Central energy input in a similarity solution
- Critically balanced electron-magnetohydrodynamic cascade
- Differential cross-section for scalar wave scattering
- Elastic energy velocity
- Electromagnetic radiation
- Electromagnetic wave
- Energy flux of a torsional wave
- Ensemble-averaged wave intensity
- Evanescent field in total internal reflection
- Friis transmission equation
- Group velocity
- Hydraulic jump head loss
- Inertial range
- Interference (wave propagation)
- Iroshnikov-Kraichnan spectrum
- Isothermal shearing-sheet energy conservation
- Isotropic inverse-Compton drag
- Kinematic pressure
- Leaking and trapped SH-wave reverberations
- Lippmann fringe spacing
- Nonpropagating mode at waveguide cutoff
- Outgoing radiation pulse
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- Peltier coefficient
- Poynting theorem
- Poynting vector
- Radiation pressure
- Radiation pressure of an isotropic photon gas
- Scalar wave intensity
- Spatial walk-off
- Surface albedo
- Townsend-Betchov cascade cartoon
- Transmitted power
- Wavefront
- Weak Alfvénic cascade
- Weak electron-magnetohydrodynamic cascade
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Energy flux is a measure of the rate at which energy is transferred or radiated through a given surface area. It quantifies how much energy passes through a unit area in a specific direction per unit of time. The concept is commonly used in fields such as physics, engineering, and environmental science to describe the flow of energy.