Heat transfer characteristic of a vibrating cylinder with fluid flow

Heat transfer characteristic of a vibrating cylinder in two-dimensional fluid flow was numerically investigated using the dynamic meshing and UDF programming technology via Fluent CFD software. The influences of flow velocity and the vibrating direction of the cylinder on its heat transfer were discussed. The numerical results showed that comparing with the still cylinder heat transfer, when the flow velocity is much smaller than the maximum cylinder vibrating speed, the cylinder vibration has a significant influence on its heat transfer enhancement; and the influence is reduced with increase in the flow velocity; when the flow velocity is 4 times as the max cylinder vibrating speed, the cylinder heat transfer effect grows only 1.2%. It was also shown that the vibrating direction has less influence on heat transfer enhancement when the cylinder vibrates along different directions with the same flow velocity.