convection zone


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convection zone

n.
A region of turbulent plasma located within a star, through which energy is transported outward by convection. In a convection zone, hot plasma rises, cools as it recedes from the hot stellar center, and then falls to be heated and rise again.

convection zone

The outer part of the inside of a star, especially the sun, where energy travels outward to the photosphere through convection. In this layer, hot gas rises, cools as it nears the surface, and falls to be heated and rise again.
References in periodicals archive ?
Tenders are invited for Fabrication And Replacement Of Steam Superheater Coil Assembly (E203a) In The Steam Reforming Furnace Convection Zone In Ammoniav Plant At Rcf Trombay Unit
WASP-18 is particularly susceptible to this effect because its convection zone is narrower than most stars.
It is assumed that some exhaust gases recirculate to the preheat vaporization zone, and the rest of them go to the convection zone.
Researchers have suspected for a long time that sunspot regions are generated in the deep solar interior, but until now the emergence of these regions through the convection zone to the surface had gone undetected," Ilonidis said.
An intriguing observation is in the convection zone of the sun, which extends from the visible surface some 150,000 miles in.
The Sidewall Scraper creates a forced conduction zone and a forced convection zone while both it and the mill are in operation.
The rising and falling of parcels of charged gas within the sun's convection zone, the outer one-third of its roiling interior, generates a current, which in turn produces a magnetic field.
Tenders are invited for Primary Reformer Convection Zone Process Coils Cleaning By Dry Ice Blasting In Ammonia V Plant
The combination of the meridional flow and the lifting and twisting of magnetic fields near the bottom of the convection zone generates the observed symmetry of the sun's global field with respect to the solar equator.
Because of the turbulence in the convection zone near the surface, the Sun is figuratively ringing like a bell.
Specific subjects discussed include plasma flows in emerging sunspots, holistic MHD simulation from the convection zone to the chromosphere, supergranualtion scale convection simulations, diagnostics of quiet- sun magnetism, and the dynamical disconnection of sunspots from their magnetic roots.
Above lies the convection zone, where heat converts to motion and the bulk of the sun's magnetic field is believed to originate.