convection
convection کی
definition
noun
One possibility that must be considered is that the heat from the waste package could induce convection of the fluids within the host rock and enhance flow rates in the vicinity of the disposal.
the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
example
So unlike marble, the main cooling process for carpet is not conduction, but 'convection' .
Many clouds form as a result of warm and moist air rising - 'convection' .
In 'convection' heat is transferred through air or fluid circulation.
Heat will only leave the container by radiation, 'convection' and conduction if the temperature of the container is higher than the surroundings.
In addition to carrying heat away from the ground, 'convection' causes clouds, thunderstorms, and hurricanes to form.
While convection could involve solid transport, the most important cases of 'convection' involve fluid transport.
Nor did they understand how the insulated walls of the cooker diminished conduction and 'convection' of the heat inside the unit.
This is the best time to avoid turbulence either from possible thunderstorms or heat 'convection' from the sun.
When the winds encounter these warm surface waters, they rise with 'convection' .
The rays of the sun heat the tropics, and this causes 'convection' to occur.
This energy is transported outwards by 'convection' and radiation until it reaches the surface, where the temperature is believed to be 5,800 degrees Celsius.
No 'convection' , therefore, occurs between or within solids.
One possibility that must be considered is that the heat from the waste package could induce 'convection' of the fluids within the host rock and enhance flow rates in the vicinity of the disposal.
the final transfer of energy to the surface is by 'convection'
upward 'convection' in the troposphere carries water vapour and sulphur dioxide above the clouds
Humans have several avenues of heat loss available to them: conduction, 'convection' , radiation and evaporation.
Heat gain or loss results from four heat exchange processes - 'convection' , conduction, radiation and evaporation.
This concept of air movement, called natural 'convection' , is an integral part of all successful solar heating installations.
The air in the lower atmosphere is being mixed via 'convection' , which is a result of sunlight hitting the ground.
The eastward movement of the low-pressure 'convection' area results in drought conditions in Australia, Indonesia, Africa, and India.
There are only 3 ways that heat can be transferred - by conduction, 'convection' , or radiation.
Heat is exchanged between the body and its surrounding environment by physical transfer involving conduction, 'convection' , and radiation.
This area of the world is one of only a few places where the underlying ocean column is marginally stable enough that this process can occur in the open ocean and lead to 'convective' chimneys going down 2000 to 3000 meters.
Its resulting temperature inertia greatly modifies the temperature regimes of adjacent land, largely by the 'convectional' circulation of air.
As long as the bird is resting and those feathers are sealed off, you do not have substantial free convection and easy 'convective' movement-it is all conduction and radiation processes within the feathers.
We did not observe movements having a vectorial nature consistent with a 'convectional' flow; however, the number of data points collected during our experiments may not have been large enough to identify this type of motion.
In arid areas, the rainfall is caused by 'convectional' instability through heating of the ground surface.
This cycle is repeated over and over to generate what scientists call a convection cell or 'convective' flow.
This diagram shows three major 'convective' cells between the equator and the pole.
The conditions required for tropical cyclones are also suitable conditions for thunderstorms, deep 'convective' clouds with strong updraughts.
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