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is unpredictable

Physics.
Teacher-in-charge: Mr chio
Students: Adlin, Diyanah, Elisa, Grace, Jermaine, Jingsheng, Pauline, Qianwei, Saiful, Tabatha, Vinis, Wende, Zongxian,

A common use of the term convection leaves out the word "heat" but nevertheless refers to heat convection: that is, the case in which heat is the entity of interest being advected (carried), and diffused (dispersed). There are two major types of heat convection:
Heat is carried passively by a fluid motion which would occur anyway without the heating process. This heat transfer process is often termed forced convection or occasionally heat advection.
Heat itself causes the fluid motion (via expansion and buoyancy force), while at the same time also causing heat to be transported by this bulk motion of the fluid. This process is called natural convection, or free convection. With natural convection, heat transport (and related transport of other substances in the fluid due to it) is generally more complicated.
Both forced and natural types of heat convection may occur together (in that case being termed mixed convection).
Convective heat transfer is a mechanism of heat transfer occurring because of bulk motion (observable movement) of fluids (see convection for concept details). This can be contrasted with conductive heat transfer, which is the transfer of energy by vibrations at a molecular level through a solid or fluid, and radiative heat transfer, the transfer of energy through electromagnetic waves.



ZONGXIAN .