RT Journal Article ID 14bf0ecc58b4392f A1 Simenthy, Roam A1 Raghavan, Vasudevan R. A1 Tiwari, Shaligram T1 ON DYNAMIC AND ENERGY TRANSFER CHARACTERISTICS OF FLOW PAST TRANSVERSELY OSCILLATING CIRCULAR CYLINDER IN THE WAKE OF STATIONARY CYLINDER JF International Journal of Fluid Mechanics Research JO FMR YR 2018 FD 2018-08-09 VO 45 IS 6 SP 509 OP 529 K1 two inline circular cylinders K1 transversely oscillating downstream cylinder K1 inter-cylinder spacing K1 unsteady wake characteristics K1 lift and drag K1 mechanical energy transfer AB Two-dimensional numerical investigations have been carried out to study the flow and energy transfer characteristics of flow past two inline circular cylinders with a downstream cylinder subjected to forced transverse oscillations. The effect of transverse oscillations of the downstream cylinder on unsteady wake characteristics as well as exchange of mechanical energy has been investigated. The dynamic effects, wake behavior, and mechanical energy exchange between the fluid and downstream cylinder have been studied elaborately for different combinations of amplitude, frequency, and inter-cylinder spacing. The oscillation frequency of the downstream cylinder has been varied in the range from 0.4 to 2.0 times the vortex shedding frequency behind a single stationary circular cylinder. Three different values of amplitude, viz., 0.1D, 0.3D, and 0.5D (D being the diameter of either cylinder), have been considered. The spacing between the cylinders (center-to-center distance) is also varied from 2D to 5D for each combination of amplitude and frequency and for fixed value of Reynolds number (Re) equal to 100. Results are presented in the form of vorticity contours, variation of lift and drag coefficients, their signals, and spectra. PB Begell House LK https://www.dl.begellhouse.com/journals/71cb29ca5b40f8f8,2f7b013508d1d2f0,14bf0ecc58b4392f.html