An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 3 Search : dissipation
dissipation
  افتال، افتالش   
eftâl, eftâleš

Fr.: dissipation   

The loss of energy over time by a → dynamical system, typically due to the action of → friction or → turbulence. The lost energy is converted into heat, raising the temperature of the system. See also: → Ohmic dissipation. → viscous dissipation.

Noun form of → dissipate.

Ohmic dissipation
  افتالِ اُهمی   
eftâl-e ohmi

Fr.: dissipation ohmique   

1) A loss of electric energy due to conversion into heat when a current flows through a resistance. Same as Ohmic loss.
2) In plasma physics, the energy released by charged particles as they make collisions with other particles.

Ohmic; → dissipation.

viscous dissipation
  افتال ِ وشکسان   
eftâl-e vošksân

Fr.: dissipation visqueuse   

A degradation of → mechanical energy that is irreversibly converted to → thermal energy due to → viscous forces in the → fluid. Viscous dissipation occurs in → turbulent flows.

viscous; → dissipation.