When fluid is heated, the currents set up may cause mixing of fluid. Such heat transfer is known as:
A)Forced Convection
B)Natural Convection
C)Conduction
D)None of these

Question

Quizplus · Accepted Answer

Natural convection occurs when fluid motion is caused by buoyancy forces that result from the density variations due to temperature gradients in the fluid. Heating a fluid decreases its density, causing it to rise, while cooler fluid descends, setting up a circulation pattern that results in mixing and heat transfer.

When Fluid Is Heated, the Currents Set Up May Cause