Vortex-induced vibration of two circular cylinders at low Reynolds number

Two-degree-of-freedom flow-induced vibrations on isolated and tandem cylinders with varying natural frequency ratios

“…The combined in-line and transverse vibrations of a single cylinder typically present a figure-eight motion because the dominant frequency in the drag fluctuation is twice that in the lift (Prasanth and Mittal, 2009). The same response in terms of the cylinder orbit is also observed in the current simulations.…”

“…It was observed in Prasanth and Mittal (2009) that unlike the upstream cylinder, which typically moves in a figure-eight orbit pattern, the motion of the downstream cylinder appears to be much more unstable and irregular. Figs.…”

Numerical evaluation of passive control of VIV by small control rods

“…Due to its convenient and lowcost merits, flow over multiple cylinders has attracted the interest of a number of investigators. Uniform flow past two identical circular cylinders in tandem [35,36], side-by-side [37] or generally staggered arrangements [38] have been studied extensively using either numerical or experimental methods. Reynolds number and the gap between the cylinders are the two main parameters determining the fluid forces and flow regimes.…”

Flow Patterns and Heat Transfer Around Six in-Line Circular Cylinders at Low Reynolds Number

“…The simple two cylinders configuration has been discussed extensively and it represents a starting point to study the flow around multiple bluff bodies (Ben Meftah and Mossa 2013, Chan et al 2011, Jester and Kallinderis 2003, Prasanth and Mittal 2009, S. Mittal and Kumar 2001, Sharman et al 2005, Sumner et al 2000. According to the literature, a well-known drag inversion separation has been identified.…”