Suppressing Vortex Induced Vibration of an Elastic Mounted Circular Cylinder by Wavy Wall

Technique of wavy wall with the circumferential direction is used to suppressing vortex induced vibration of an elastically mounted circular cylinder which is free to move along the stream-wise (X-Direction) and transverse (Y-Direction) direction. The simulation is performed at low Reynolds number (Re) and based on finite volume method (FVD). The results show that wavy wall is very effective for suppressing VIV by detuning vortex shedding. Transverse response is reduced greatly while applying appropriate frequency and the amplitude is located between 0 and 0.05D (D is the diameter of cylinder) with the increase of reduced speeds and fixed Reynolds number 500. Besides, the difference-value between wavy wall cylinder and standard cylinder increases.Copyright © 2011 by ASME