The local Nusselt number distribution curve of the flow around a fixed cylinder is symmetric with respect to the front stagnation point, and the maximum value is obtained at the front stagnation point. After the separation point, the local Nusselt number decreases gradually, because the fluid heated by the front stagnation point moves backward and thickens the thermal boundary layer, resulting in the decrease of the local heat transfer rate. In the vicinity of the rear stagnation point, the local heat transfer has a certain recovery, which is caused by the tail vortex. The maximum local Nusselt number of the vibrating cylinder is different from that of the fixed cylinder [41,42]. With the change of the reduction speed, the position of the maximum local Nusselt number is shifted.<br>
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