Forced Convection
Forced convection is the mode of heat transfer in which particles actually move to the source of heat. This mode occurs when a fluid is forced to flow over a surface by an external force such as a pump or a fan.

Explanation
- In forced convection, the fluid particles near the heat source absorb heat energy, causing them to increase in temperature and move away from the source.
- As these particles move away, they are replaced by cooler particles which in turn absorb heat and move away as well.
- This continuous movement of fluid particles towards the heat source and away from it creates a flow of heat through the fluid, thus transferring heat from the source to other parts of the fluid.
- The rate of heat transfer in forced convection is dependent on various factors such as the velocity of the fluid, the temperature difference between the fluid and the surface, and the properties of the fluid itself.

Applications
Forced convection is commonly used in various engineering applications such as cooling systems in automobiles, HVAC systems in buildings, and heat exchangers in industrial processes. By actively moving the fluid over a surface, forced convection can enhance heat transfer rates and improve the overall efficiency of heat exchange systems.

Convection