Point source: Difference between revisions

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|Meaning=#With respect to [[radiation]], a single point in space emitting radiation.
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|Explanation=The radiation from such a source may be expressed as [[flux]] per unit solid angle (W sr<sup>-1</sup>).<br/>  
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#In experimental studies of [[atmospheric turbulence]] and [[diffusion]], a source of particulate  matter from a single fixed point.<br/> There are continuous and instantaneous point sources. The analogous concepts of [[line source]]  and [[plane source]] are also frequently encountered.<br/>  
== point source ==
#In [[hydrodynamics]], a source of mass, that is, a [[singular point]] in the [[field]] where the  [[equation of continuity]] fails.
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#<div class="definition"><div class="short_definition">With respect to [[radiation]], a single point in space emitting radiation.</div><br/> <div class="paragraph">The radiation from such a source may be expressed as [[flux]] per unit solid angle (W sr<sup>-1</sup>).</div><br/> </div>
#<div class="definition"><div class="short_definition">In experimental studies of [[atmospheric turbulence]] and [[diffusion]], a source of particulate  matter from a single fixed point.</div><br/> <div class="paragraph">There are continuous and instantaneous point sources. The analogous concepts of [[line source]]  and [[plane source]] are also frequently encountered.</div><br/> </div>
#<div class="definition"><div class="short_definition">In [[hydrodynamics]], a source of mass, that is, a [[singular point]] in the [[field]] where the  [[equation of continuity]] fails.</div><br/> </div>
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[[Category:Terms_P]]

Latest revision as of 03:45, 29 March 2024

  1. With respect to radiation, a single point in space emitting radiation.

The radiation from such a source may be expressed as flux per unit solid angle (W sr-1).

  1. In experimental studies of atmospheric turbulence and diffusion, a source of particulate matter from a single fixed point.
    There are continuous and instantaneous point sources. The analogous concepts of line source and plane source are also frequently encountered.
  2. In hydrodynamics, a source of mass, that is, a singular point in the field where the equation of continuity fails.
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