sundkonvektsioon

Sundkonvektsioon, also known as forced convection, is a mode of heat transfer in which a fluid moves due to an external force. Unlike natural convection, where fluid motion is driven by density differences caused by temperature gradients, sundkonvektsioon relies on external devices such as pumps or fans to induce or enhance fluid flow. This external force overcomes the natural buoyancy effects and leads to a more controlled and often more efficient heat transfer process.

In sundkonvektsioon, the rate of heat transfer is directly proportional to the velocity of the fluid. Higher fluid velocities result in a thinner thermal boundary layer at the heat transfer surface, which reduces the thermal resistance and increases the heat transfer coefficient. This principle is widely applied in various engineering applications. For instance, fans in computer cooling systems, radiators in vehicles, and pumps in heating and cooling circuits all utilize sundkonvektsioon to dissipate or transfer heat effectively. The ability to control the fluid flow rate allows for precise regulation of temperature in a system.