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Convection
Yes, convection is the transfer of heat through bulk movement of a fluid, gas or liquid. The movement can be natural caused by density differences, or can be forced.
Not unless the fluid is flowing due to temperature/density differences.
Buoyant force is caused by differences in fluid pressure.Buoyancy is the upward force on an object produced by the surrounding fluid (could be a liquid or a gas) in which it is fully or partially immersed.
convection current
Convection
Convection refers to the transfer of heat energy by the motion of a fluid such as air or water caused by differences in temperature within the fluid. Therefore convection happens wherever there is a fluid with a temperature gradient. This means that convection is happening continuously in the air around us and in bodies of water. A car heater and a convection oven are also considered to transfer heat by convection, but this is using the term liberally since the movement of the fluid (air) in these two cases is caused by a fan, not temperature gradient. So, while not perhaps being absolutely accurate examples of convection, still the heat is transferred through fluid motion.
condensation
Yes, convection is the transfer of heat through bulk movement of a fluid, gas or liquid. The movement can be natural caused by density differences, or can be forced.
convection currents
Not unless the fluid is flowing due to temperature/density differences.
Buoyant force is caused by differences in fluid pressure.Buoyancy is the upward force on an object produced by the surrounding fluid (could be a liquid or a gas) in which it is fully or partially immersed.
A convection current is a natural flow or circulation of fluid due to a variation in its density due to temperature differences. As a fluid's temperature increases, its density reduces, and the fluid rises to be replaced by fluid at a lower temperature. Convection, together with conduction and radiation, is a method of heat transfer.
Motion of a fluid (liquid or gas) caused by density changes caused by temperature changes.
If it is a result of temperature differences, it is called convection.
convection current
A mechanical compressor is a device which compresses fluid. It is used to create differences in presssure which creates movement in said fluid. The compressed fluid also has more energy, and thus more uses than expanded fluid.