Examples of convection in the following topics:
-
- At the same time, if a fluid such as circulating air or
water in a pool comes into contact with the skin when we are very hot, this
will allow for heat loss through the process of convection.
- The higher the amount of our body surface
exposed to this (usually) circulating air (e.g. as little clothing as
possible), the higher the speed of the circulating air (e.g. it’s really
windy), and the smaller the distance between the skin surface and the blood
vessels, the greater the loss of heat from our body via convection.
- With respect to body heat loss, the processes of radiation
and convection are most effective when the environmental temperature is below
20 C, while evaporative cooling accounts for the most heat loss when the environmental
temperature is above 20 C, and especially when it’s hotter than 35 C.
- These flat hairs increase the flow of air next to the skin and increase heat loss by convection.
- Since the
blood vessels are narrower than they were before, less blood flows through the
skin and thus less heat can escape into the environment via radiation,
convection, and conduction.
-
- The articular capsule is highly innervated but avascular (lacking blood and lymph vessels), and receives nutrition from the surrounding blood supply via either the slow process of diffusion or convection, a far more efficient process.