What Is Convection?

Convection (convection) refers to the relative flow inside the fluid due to the different temperature of each part, that is, the process of heat transfer by the fluid (gas or liquid) through the macroscopic flow of its own parts. In a liquid or gas, the hotter part rises, and the colder part falls, cyclically flows, blends with each other, and eventually makes the temperature uniform. Due to the small thermal conductivity of the fluid and the small amount of heat transferred through thermal conduction, convection is the main heat transfer method of the fluid. ^[1]

troposphere

Located in the lowest layer of the atmosphere, which concentrates about 75% of the atmospheric quality

mantle convection hypothesis

A description of the interior of the earth

In fluid mechanics, the process of convection refers to the fluid in a macroscopic flow state.

(1) The process of defining or explaining the heat transfer in a substance (system) is called

In earthwork construction, it is often encountered: the convection of earthwork refers to borrowing from each other, causing waste.