Abstract
This document mainly explains a new method of evaluate the energy harvested from vortex-induced vibration phenomenon of the circular cylinder. The external flow field of the cylinder has been solved by a RANS method together with the one equation turbulent Spalart-Allmaras model. The feedback effect of the circuit has been calculated by a matrix method to obtain the damping and the natural frequency of the system. Then the voltage output has been solved by a quasi-steady method. Finally, we discuss the computing method of the power output.
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