Abstract
The characteristic of flow-induced vibration and heat transfer of a cylinder with elastic supporting in two-dimensional fluid flow was numerically investigated by Workbench and CFX software. The numerical results show that, in the same conditions, the greater elastic support stiffness of the cylinder is ,the greater the value and range of fluid speed where the vortex-induced vibration of a circular occurs; With the same elastic support stiffness, the frequency and amplitude of flow-induced cylinder vibrating along transverse direction are much greater than that of in in-line direction(longitudinal direction), and the value and range of fluid speed where the vortex-induced vibration along longitudinal direction of a cylinder occurs is much smaller than that of along transverse direction. When the max vibration velocity of cylinder is much less than the flow speed, the flow-induced cylinder vibration can not reach the effect of heat transfer enhancement.
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