In the various subfields of physics, there exist two common usages of the term **flux**, both with rigorous mathematical frameworks. A simple and ubiquitous concept throughout physics and applied mathematics is the flow of a physical property in space, frequently also with time variation. It is the basis of the field concept in physics and mathematics, with two principle applications: in transport phenomena and surface integrals. The terms **"flux"**, **"current"**, **"flux density"**, **"current density"**, can sometimes be used interchangeably and ambiguously, though the terms used below match those of the contexts in the literature.

Read more about Flux: Origin of The Term, Flux As Flow Rate Per Unit Area

### Other articles related to "flux":

**Flux**

... A secondary

**flux**is a ceramic

**flux**(such as calcium, barium, magnesium or zinc oxide) which does not act as a good

**flux**(i.e ... itself has little fluxing effect at pyrometric cone 6 but does act as a

**flux**at cone 8 ... A primary

**flux**is a metal ion such as sodium which acts as a

**flux**at all temperatures ...

**Flux**As A Surface Integral - Electromagnetism - Poynting

**Flux**

... Using this definition, the

**flux**of the Poynting vector S over a specified surface is the rate at which electromagnetic energy flows through that surface ... Confusingly, the Poynting vector is sometimes called the power

**flux**, which is an example of the first usage of

**flux**, above ...

**Flux**Density -

**Flux**Density of The Radiative Field At A Measuring Point - Comparison Between Vector and Scalar Definitions of

**Flux**Density

... In this case, the value of the vector

**flux**density at P1 is the zero vector, while the scalar or hemispheric

**flux**density at P1 in every direction in both senses takes the constant scalar value πI ... angles of incidence of the radiation on the detector requires a halving of the energy

**flux**according to Lambert's cosine law the solid angle of a sphere is 4π ... The scalar or hemispheric spectral

**flux**density is convenient for discussions in terms of the two-stream model of the radiative field, which is reasonable for a ...

**Flux**Density

... graphical spectra with vertical axes that show the relative spectral

**flux**density ... In this case, the spectral

**flux**density at a given wavelength is expressed as a fraction of some arbitrarily chosen reference value ... Relative spectral

**flux**densities are expressed as pure numbers without any units ...

... along with any generation or consumption inside the control volume where is the total

**flux**and s is a net volumetric source for c ... There are two sources of

**flux**in this situation ... First, diffusive

**flux**arises due to diffusion ...

### Famous quotes containing the word flux:

“Death not merely ends life, it also bestows upon it a silent completeness, snatched from the hazardous *flux* to which all things human are subject.”

—Hannah Arendt (1906–1975)

“Existence is no more than the precarious attainment of relevance in an intensely mobile *flux* of past, present, and future.”

—Susan Sontag (b. 1933)

“Sense is a line, the mind is a circle. Sense is like a line which is the *flux* of a point running out from itself, but intellect like a circle that keeps within itself.”

—Ralph J. Cudworth (1617–1688)